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  Topic Review (Newest First)
12-21-2015 08:16 AM
Maine Sail
Re: Bedding Deck Hardware With Butyl Tape

Depends upon temperature. The colder it is the slower it oozes out.. The consistency does not change (at least if you are using Bed-It Tape) so you could re-tighten a year later if you needed to....
12-21-2015 08:11 AM
regatta
Bedding Deck Hardware With Butyl Tape

Could make those small adjus Also after many days or immediately after first tighten?


Gabriele
Www.marieholm26.org
12-21-2015 08:10 AM
Maine Sail
Re: Bedding Deck Hardware With Butyl Tape

Quote:
Originally Posted by regatta View Post
Hello !!
One more question for help about butyl... Tighten the bolts at once or in several times ....who can remove this doubt ?


Inviato dal mio iPhone utilizzando Tapatalk
Several small tightenings until the butyl stops oozing out. Try not to twist the bolt just the nut.
12-21-2015 06:42 AM
regatta
Re: Bedding Deck Hardware With Butyl Tape

Hello !!
One more question for help about butyl... Tighten the bolts at once or in several times ....who can remove this doubt ?


Inviato dal mio iPhone utilizzando Tapatalk
11-19-2015 09:05 AM
Maine Sail
Re: Bedding Deck Hardware With Butyl Tape

Quote:
Originally Posted by DenS View Post
Great tutorial! Just ordered some,need to start rebedding deck hardware. Could this be used for resealing acrylic to hatch frame? I know there is no clamping force holding it in,but the pictures on pbase of the knife make it look very sticky and pliable. Not sure what the sealant is in the hatch frame now,but it is soft and pliable,and I suspect original to my 1982 boat.
I don't recommend it for lens to frame unless it was an emergency fix to "get you home".. The proper sealant for hatch lens to frame would be a product such as Dow 795 of Sika 295UV with the special primer.

Frame to deck is fine but lens to frame I don't advise...
11-18-2015 10:55 PM
mitiempo
Re: Bedding Deck Hardware With Butyl Tape

Quote:
Originally Posted by DenS View Post
Could this be used for resealing acrylic to hatch frame? I know there is no clamping force holding it in,but the pictures on pbase of the knife make it look very sticky and pliable. Not sure what the sealant is in the hatch frame now,but it is soft and pliable,and I suspect original to my 1982 boat.
Butyl is not the best choice for sealing acrylic in a hatch frame.

The best choices are Dow 795, GE SG 4000, or Sika 295. The Sika requires a primer.

Which Sealants To Use | Selectplastics
11-18-2015 10:18 PM
albrazzi
Re: Bedding Deck Hardware With Butyl Tape

Quote:
Originally Posted by TakeFive View Post
Are you sure they didn't use a curing adhesive/sealant, like Sikaflex 295? That's very common for around hatches, etc. It's totally different stuff from the butyl tape.

Carbon black pigment has well known properties as a free radical inhibitor, which when formulated into sealants, rubber leg ends, wire ties, and other products can make them much more UV resistant. That's why you often see black sealants used in high sun areas. The white stuff works fine in more shadowed areas like hull deck joints.
Its soft like Butyl that's why I think its that. AFIK all other sealants have a cure, this peels right off with a putty knife and cleans up with acetone. Curious I admit.
Yes I don't even but the white ties for that reason.
11-18-2015 09:56 PM
TakeFive
Re: Bedding Deck Hardware With Butyl Tape

Quote:
Originally Posted by albrazzi View Post
That's what was used on my hatches. The thing I don't understand is why they used Black on all the hatches and white or off white on the hull deck joint. Cleaning all the excess off as I go but why Black on deck??
Are you sure they didn't use a curing adhesive/sealant, like Sikaflex 295? That's very common for around hatches, etc. It's totally different stuff from the butyl tape.

Carbon black pigment has well known properties as a free radical scavenger, which when formulated into sealants, rubber leg ends, wire ties, and other products can make them much more UV resistant. That's why you often see black sealants used in high sun areas. The white stuff works fine in more shadowed areas like hull deck joints.
11-17-2015 05:57 PM
albrazzi
Re: Bedding Deck Hardware With Butyl Tape

Quote:
Originally Posted by DenS View Post
Great tutorial! Just ordered some,need to start rebedding deck hardware. Could this be used for resealing acrylic to hatch frame? I know there is no clamping force holding it in,but the pictures on pbase of the knife make it look very sticky and pliable. Not sure what the sealant is in the hatch frame now,but it is soft and pliable,and I suspect original to my 1982 boat.
That's what was used on my hatches. The thing I don't understand is why they used Black on all the hatches and white or off white on the hull deck joint. Cleaning all the excess off as I go but why Black on deck??
11-15-2015 08:39 PM
TakeFive
Re: Bedding Deck Hardware With Butyl Tape

Quote:
Originally Posted by jgragrg View Post
I might add that on a hot summer day butyl tape can be brutal to work with because it stretches so easy.
That's true of the cheap stuff from the RV store. But not true of the material that Maine Sail sells. Spend the money to do it right the first time. You won't regret it.
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