Leaking hatch...

Hi all, the large Bomar hatch is leaking and I've tried all I can to fix it (reseal the frame and screws with silicon, make the rubber seal come out more by filling the ridge it is mounted in with silicon so it seals tighter onto the frame, taped the top glass edges in case it comes from there... to no avail. With a little amount of rain it leaks. Anyone had this before and has any suggestions? Pic attached. Blue tape I put on there to check if it would still leak (assuming the blue tape is watertight for a little while). Any suggestions? Thanks! Bart

I ran into this on my Cal 39 MKII. The glass is some sort of plexi glass and with dark tent it had discolored and been scratched so I elected to replace the old glass and went with a wind shield grade glass. The auto glass company that cut the glass provided a glue that they use for windshield and that is what I ended up using. So the end result that I would suggest for you is go to your local auto glass company and buy the windshield glue and reinstall the glass. Sometimes it’s just easier to reinstall to fix a leak than it is trying to seal an old leak. From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] Sent: Saturday, January 6, 2018 8:19 PM To: Ca… [at] yahoogroups.com Subject: [Cal_Boats] Leaking hatch... Hi all, the large Bomar hatch is leaking and I've tried all I can to fix it (reseal the frame and screws with silicon, make the rubber seal come out more by filling the ridge it is mounted in with silicon so it seals tighter onto the frame, taped the top glass edges in case it comes from there... to no avail. With a little amount of rain it leaks. Anyone had this before and has any suggestions? Pic attached. Blue tape I put on there to check if it would still leak (assuming the blue tape is watertight for a little while). Any suggestions? Thanks! Bart

i could also suggest you remove the hatch and take it to them if you can afford it or are strapped for time john b s/v 1983 catalina 27 On Sunday, January 7, 2018, 2:02:58 AM CST, 'Travis' sw… [at] yahoo.com [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: I ran into this on my Cal 39 MKII. The glass is some sort of plexi glass and with dark tent it had discolored and been scratched so I elected to replace the old glass and went with a wind shield grade glass. The auto glass company that cut the glass provided a glue that they use for windshield and that is what I ended up using. So the end result that I would suggest for you is go to your local auto glass company and buy the windshield glue and reinstall the glass. Sometimes it’s just easier to reinstall to fix a leak than it is trying to seal an old leak. From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] Sent: Saturday, January 6, 2018 8:19 PM To: Ca… [at] yahoogroups.com Subject: [Cal_Boats] Leaking hatch... Hi all, the large Bomar hatch is leaking and I've tried all I can to fix it (reseal the frame and screws with silicon, make the rubber seal come out more by filling the ridge it is mounted in with silicon so it seals tighter onto the frame, taped the top glass edges in case it comes from there... to no avail. With a little amount of rain it leaks. Anyone had this before and has any suggestions? Pic attached. Blue tape I put on there to check if it would still leak (assuming the blue tape is watertight for a little while). Any suggestions? Thanks! Bart

Silicone is a very bad bedding compound when bedding hardware to fiberglass. Reason is it doesn’t work because it is relatively inflexible and so most always leads to leaks. Worse, all remnants of Si must be removed (tough to do) before using a proper purpose-made bedding compound because nothing sticks to Si. I like butyl. Everyone has their favorite, it seems. Si may work for some other purpose, but not for bedding to fiberglass or wood. Ask me how I know (had another boat whose PO was in love with Si. The boat leaked like a sieve wherever Si was used). Specialty compounds (derived from Si?) are great for attaching/sealing plexi to its frame, as has been mentioned. Regards, -Doug Hoffman > On Jan 7, 2018, at 12:19 AM, Bart van Halteren b_… [at] outlook.com [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > > Hi all, the large Bomar hatch is leaking and I've tried all I can to fix it (reseal the frame and screws with silicon, make the rubber seal come out more by filling the ridge it is mounted in with silicon so it seals tighter onto the frame, taped the top glass edges in case it comes from there... to no avail. With a little amount of rain it leaks. Anyone had this before and has any suggestions? Pic attached. Blue tape I put on there to check if it would still leak (assuming the blue tape is watertight for a little while). > > > Any suggestions? Thanks! Bart

Silicon sticks to plexiglass where things like Life Calk do not. I don't know about fiberglass but Life Seal sticks to plexiglass and wood and I would be shocked it it didn't stick to fiberglass. I tried everything else before figuring that out. You clean it with turpentine. Other solvents will attack the plexiglass or not clean the calking. On Sun, Jan 7, 2018 at 9:31 AM, Doug Hoffman dh… [at] gmail.com [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > > > Silicone is a very bad bedding compound when bedding hardware to > fiberglass. Reason is it doesn’t work because it is relatively inflexible > and so most always leads to leaks. Worse, all remnants of Si must be > removed (tough to do) before using a proper purpose-made bedding compound > because nothing sticks to Si. I like butyl. Everyone has their favorite, it > seems. > > Si may work for some other purpose, but not for bedding to fiberglass or > wood. Ask me how I know (had another boat whose PO was in love with Si. The > boat leaked like a sieve wherever Si was used). > > Specialty compounds (derived from Si?) are great for attaching/sealing > plexi to its frame, as has been mentioned. > > Regards, > > -Doug Hoffman > > > On Jan 7, 2018, at 12:19 AM, Bart van Halteren b_… [at] outlook.com > [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > > > > Hi all, the large Bomar hatch is leaking and I've tried all I can to fix > it (reseal the frame and screws with silicon, make the rubber seal come out > more by filling the ridge it is mounted in with silicon so it seals tighter > onto the frame, taped the top glass edges in case it comes from there... to > no avail. With a little amount of rain it leaks. Anyone had this before and > has any suggestions? Pic attached. Blue tape I put on there to check if it > would still leak (assuming the blue tape is watertight for a little while). > > > > > > Any suggestions? Thanks! Bart > > >

Hi Allen, I believe we are saying the same thing regarding silicone use on plexiglas. Perhaps I was a bit unclear in that regard. -Doug > On Jan 7, 2018, at 12:44 PM, Allen Edwards <al… [at] gmail.com> wrote: > > Silicon sticks to plexiglass where things like Life Calk do not. I don't know about fiberglass but Life Seal sticks to plexiglass and wood and I would be shocked it it didn't stick to fiberglass. I tried everything else before figuring that out. You clean it with turpentine. Other solvents will attack the plexiglass or not clean the calking. > > On Sun, Jan 7, 2018 at 9:31 AM, Doug Hoffman dh… [at] gmail.com [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > Silicone is a very bad bedding compound when bedding hardware to fiberglass. Reason is it doesn’t work because it is relatively inflexible and so most always leads to leaks. Worse, all remnants of Si must be removed (tough to do) before using a proper purpose-made bedding compound because nothing sticks to Si. I like butyl. Everyone has their favorite, it seems. > > Si may work for some other purpose, but not for bedding to fiberglass or wood. Ask me how I know (had another boat whose PO was in love with Si. The boat leaked like a sieve wherever Si was used). > > Specialty compounds (derived from Si?) are great for attaching/sealing plexi to its frame, as has been mentioned. > > Regards, > > -Doug Hoffman > > > On Jan 7, 2018, at 12:19 AM, Bart van Halteren b_… [at] outlook.com [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > > > > Hi all, the large Bomar hatch is leaking and I've tried all I can to fix it (reseal the frame and screws with silicon, make the rubber seal come out more by filling the ridge it is mounted in with silicon so it seals tighter onto the frame, taped the top glass edges in case it comes from there... to no avail. With a little amount of rain it leaks. Anyone had this before and has any suggestions? Pic attached. Blue tape I put on there to check if it would still leak (assuming the blue tape is watertight for a little while). > > > > > > Any suggestions? Thanks! Bart > > >

I was just suggesting Life Seal as an appropriate material. It is the only sealant that I think will work for bedding plexiglass to wood and if Si doesn't work on fiberglass, I am 99% sure Life Seal will. On Sun, Jan 7, 2018 at 10:07 AM, Doug Hoffman <dh… [at] gmail.com> wrote: > Hi Allen, > > I believe we are saying the same thing regarding silicone use on > plexiglas. Perhaps I was a bit unclear in that regard. > > -Doug > > > On Jan 7, 2018, at 12:44 PM, Allen Edwards <al… [at] gmail.com> > wrote: > > > > Silicon sticks to plexiglass where things like Life Calk do not. I > don't know about fiberglass but Life Seal sticks to plexiglass and wood and > I would be shocked it it didn't stick to fiberglass. I tried everything > else before figuring that out. You clean it with turpentine. Other > solvents will attack the plexiglass or not clean the calking. > > > > On Sun, Jan 7, 2018 at 9:31 AM, Doug Hoffman dh… [at] gmail.com > [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > > Silicone is a very bad bedding compound when bedding hardware to > fiberglass. Reason is it doesn’t work because it is relatively inflexible > and so most always leads to leaks. Worse, all remnants of Si must be > removed (tough to do) before using a proper purpose-made bedding compound > because nothing sticks to Si. I like butyl. Everyone has their favorite, it > seems. > > > > Si may work for some other purpose, but not for bedding to fiberglass or > wood. Ask me how I know (had another boat whose PO was in love with Si. The > boat leaked like a sieve wherever Si was used). > > > > Specialty compounds (derived from Si?) are great for attaching/sealing > plexi to its frame, as has been mentioned. > > > > Regards, > > > > -Doug Hoffman > > > > > On Jan 7, 2018, at 12:19 AM, Bart van Halteren > b_… [at] outlook.com [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > > > > > > Hi all, the large Bomar hatch is leaking and I've tried all I can to > fix it (reseal the frame and screws with silicon, make the rubber seal come > out more by filling the ridge it is mounted in with silicon so it seals > tighter onto the frame, taped the top glass edges in case it comes from > there... to no avail. With a little amount of rain it leaks. Anyone had > this before and has any suggestions? Pic attached. Blue tape I put on there > to check if it would still leak (assuming the blue tape is watertight for a > little while). > > > > > > > > > Any suggestions? Thanks! Bart > > > > > > > >

Bart, Those hinge bolts look a bit small to me - probably not original. Make sure they have a smooth shank and have a snug fit or the hatch will not seal as tightly as it should on that edge. I did re-bed both my hatches since the original sealant (5200 maybe) dried out after 20 some years; also replaced the rubber gasket material (still available from Bomar, I believe). Regards, Duane Duane Knize S/V Marlyn 1978 Cal 2-39 #18 berthed: Emeryville, CA kn… [at] san.rr.com On 1/6/2018 9:19 PM, Bart van Halteren b_… [at] outlook.com [Cal_Boats] wrote: > > Hi all, the large Bomar hatch is leaking and I've tried all I can to > fix it (reseal the frame and screws with silicon, make the rubber seal > come out more by filling the ridge it is mounted in with silicon so it > seals tighter onto the frame, taped the top glass edges in case it > comes from there... to no avail. With a little amount of rain it > leaks. Anyone had this before and has any suggestions? Pic attached. > Blue tape I put on there to check if it would still leak (assuming the > blue tape is watertight for a little while). > > > Any suggestions? Thanks! Bart >

Side question. How does Life Seal translate into 3M caulk products? Many Thanks Charlie Annapolis From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] Sent: Sunday, January 07, 2018 1:11 PM To: Doug Hoffman <dh… [at] gmail.com> Cc: Ca… [at] yahoogroups.com; Bart van Halteren <b_… [at] outlook.com> Subject: Re: [Cal_Boats] Leaking hatch... I was just suggesting Life Seal as an appropriate material.. It is the only sealant that I think will work for bedding plexiglass to wood and if Si doesn't work on fiberglass, I am 99% sure Life Seal will. On Sun, Jan 7, 2018 at 10:07 AM, Doug Hoffman <dh… [at] gmail.com <mailto:dh… [at] gmail.com> > wrote: Hi Allen, I believe we are saying the same thing regarding silicone use on plexiglas. Perhaps I was a bit unclear in that regard. -Doug > On Jan 7, 2018, at 12:44 PM, Allen Edwards <al… [at] gmail.com <mailto:al… [at] gmail.com> > wrote: > > Silicon sticks to plexiglass where things like Life Calk do not. I don't know about fiberglass but Life Seal sticks to plexiglass and wood and I would be shocked it it didn't stick to fiberglass. I tried everything else before figuring that out. You clean it with turpentine. Other solvents will attack the plexiglass or not clean the calking. > > On Sun, Jan 7, 2018 at 9:31 AM, Doug Hoffman dh… [at] gmail.com <mailto:dh… [at] gmail.com> [Cal_Boats] <Ca… [at] yahoogroups.com <mailto:Ca… [at] yahoogroups.com> > wrote: > Silicone is a very bad bedding compound when bedding hardware to fiberglass. Reason is it doesn’t work because it is relatively inflexible and so most always leads to leaks. Worse, all remnants of Si must be removed (tough to do) before using a proper purpose-made bedding compound because nothing sticks to Si. I like butyl. Everyone has their favorite, it seems. > > Si may work for some other purpose, but not for bedding to fiberglass or wood. Ask me how I know (had another boat whose PO was in love with Si. The boat leaked like a sieve wherever Si was used). > > Specialty compounds (derived from Si?) are great for attaching/sealing plexi to its frame, as has been mentioned. > > Regards, > > -Doug Hoffman >

Life seal is Polyurethane and Silicone. I am not aware of a similar 3M product. On Sun, Jan 7, 2018 at 1:46 PM, Charlie Husar <hu… [at] gmail.com> wrote: > Side question. How does Life Seal translate into 3M caulk products? > > > > Many Thanks > > Charlie > > Annapolis > > > > > > *From:* Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] > *Sent:* Sunday, January 07, 2018 1:11 PM > *To:* Doug Hoffman <dh… [at] gmail.com> > *Cc:* Ca… [at] yahoogroups.com; Bart van Halteren < > b_… [at] outlook.com> > *Subject:* Re: [Cal_Boats] Leaking hatch... > > > > I was just suggesting Life Seal as an appropriate material.. It is the > only sealant that I think will work for bedding plexiglass to wood and if > Si doesn't work on fiberglass, I am 99% sure Life Seal will. > > > > On Sun, Jan 7, 2018 at 10:07 AM, Doug Hoffman <dh… [at] gmail.com> > wrote: > > Hi Allen, > > I believe we are saying the same thing regarding silicone use on > plexiglas. Perhaps I was a bit unclear in that regard. > > -Doug > > > On Jan 7, 2018, at 12:44 PM, Allen Edwards <al… [at] gmail.com > <al… [at] gmail.com>> wrote: > > > > Silicon sticks to plexiglass where things like Life Calk do not. I > don't know about fiberglass but Life Seal sticks to plexiglass and wood and > I would be shocked it it didn't stick to fiberglass. I tried everything > else before figuring that out. You clean it with turpentine. Other > solvents will attack the plexiglass or not clean the calking. > > > > On Sun, Jan 7, 2018 at 9:31 AM, Doug Hoffman dh… [at] gmail.com > [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > > Silicone is a very bad bedding compound when bedding hardware to > fiberglass. Reason is it doesn’t work because it is relatively inflexible > and so most always leads to leaks. Worse, all remnants of Si must be > removed (tough to do) before using a proper purpose-made bedding compound > because nothing sticks to Si. I like butyl. Everyone has their favorite, it > seems. > > > > Si may work for some other purpose, but not for bedding to fiberglass or > wood. Ask me how I know (had another boat whose PO was in love with Si. The > boat leaked like a sieve wherever Si was used). > > > > Specialty compounds (derived from Si?) are great for attaching/sealing > plexi to its frame, as has been mentioned. > > > > Regards, > > > > -Doug Hoffman > > > >

Hi Duane and all. Thanks for your suggestions. I indeed now saw that the rubber in the hatch isn't as compressed onto the lower part around the area of the hinge bolts. A bit weird. I need to raise the lower part with extra rubber, because I cannot make the top ribber ring protrude more. Thanks so much! Bart From: Duane Knize Boat <kn… [at] san.rr.com> Date: 1/8/18 01:15 (GMT+07:00) To: Ca… [at] yahoogroups.com, Bart van Halteren <b_… [at] outlook.com> Subject: Re: [Cal_Boats] Leaking hatch... Bart, Those hinge bolts look a bit small to me - probably not original. Make sure they have a smooth shank and have a snug fit or the hatch will not seal as tightly as it should on that edge. I did re-bed both my hatches since the original sealant (5200 maybe) dried out after 20 some years; also replaced the rubber gasket material (still available from Bomar, I believe). Regards, Duane Duane Knize S/V Marlyn 1978 Cal 2-39 #18 berthed: Emeryville, CA kn… [at] san.rr.com<mailto:kn… [at] san.rr.com> On 1/6/2018 9:19 PM, Bart van Halteren b_… [at] outlook.com<mailto:b_… [at] outlook.com> [Cal_Boats] wrote: Hi all, the large Bomar hatch is leaking and I've tried all I can to fix it (reseal the frame and screws with silicon, make the rubber seal come out more by filling the ridge it is mounted in with silicon so it seals tighter onto the frame, taped the top glass edges in case it comes from there... to no avail. With a little amount of rain it leaks. Anyone had this before and has any suggestions? Pic attached. Blue tape I put on there to check if it would still leak (assuming the blue tape is watertight for a little while). Any suggestions? Thanks! Bart

contact bomar they might sell you a new gasket john b s/v 1983 catalina 27 On Monday, January 8, 2018, 4:46:21 AM CST, Bart van Halteren b_… [at] outlook.com [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: Hi Duane and all. Thanks for your suggestions. I indeed now saw that the rubber in the hatch isn't as compressed onto the lower part around the area of the hinge bolts. A bit weird. I need to raise the lower part with extra rubber, because I cannot make the top ribber ring protrude more. Thanks so much! Bart-------- Original message --------From: Duane Knize Boat <kn… [at] san.rr.com> Date: 1/8/18 01:15 (GMT+07:00) To: Ca… [at] yahoogroups.com, Bart van Halteren <b_… [at] outlook.com>Subject: Re: [Cal_Boats] Leaking hatch... Bart, Those hinge bolts look a bit small to me - probably not original. Make sure they have a smooth shank and have a snug fit or the hatch will not seal as tightly as it should on that edge. I did re-bed both my hatches since the original sealant (5200 maybe) dried out after 20 some years; also replaced the rubber gasket material (still available from Bomar, I believe). Regards, Duane Duane Knize S/V Marlyn 1978 Cal 2-39 #18 berthed: Emeryville, CA kn… [at] san.rr.com On 1/6/2018 9:19 PM, Bart van Halteren b_… [at] outlook.com [Cal_Boats] wrote: Hi all, the large Bomar hatch is leaking and I've tried all I can to fix it (reseal the frame and screws with silicon, make the rubber seal come out more by filling the ridge it is mounted in with silicon so it seals tighter onto the frame, taped the top glass edges in case it comes from there... to no avail. With a little amount of rain it leaks. Anyone had this before and has any suggestions? Pic attached. Blue tape I put on there to check if it would still leak (assuming the blue tape is watertight for a little while). Any suggestions? Thanks! Bart