acrylic sealants

[born2sail61]

Acrylic frame sealants.are they any good? For sealing non load bearing fittings,the bumf says they're waterproof,flexible and over~paintable.no real bonding properties. Got to be better than silicon(bloody 'orrible stuff!) and almost as cheap. Anybody tried it/got opinions on it? thanks

 

[jwilson]

Acrylic frame sealants.are they any good? For sealing non load bearing fittings,the bumf says they're waterproof,flexible and over~paintable.no real bonding properties. Got to be better than silicon(bloody 'orrible stuff!) and almost as cheap. Anybody tried it/got opinions on it? thanks

No use for anything on a boat. Even on house jobs the cheap versions can more or less dissolve if subject to prolonged water, the better brands are slightly better, but again, no use for boat fittings. Sikaflex or other cheaper polysulphides eg PU40 are good.

 

[vyv_cox]

PU40 from Toolstation has now been renamed Puraflex 40. It is a polyurethane, seems to be just the same as Sikaflex 291 as far as I can tell. Performs just as well in UK and Med conditions. The hybrids, such as CT1, Sticks like s**t and various others have the advantage that they can be used on wet surfaces but they are less strong.

 

[nigelmercier]

Sticks like s**t ...

Now also renamed to "Sticks Like ..."

 

[born2sail61]

thanks,i'll give up on that idea then,and try the pu40.

 

[vyv_cox]

Now also renamed to "Sticks Like ..."

I didn't know that. The last tube I bought was probably in March, when the s**t was included. The girl in Screwfix was most embarrassed and wouldn't say it.

 

[charles_reed]

Acrylic frame sealants.are they any good? For sealing non load bearing fittings,the bumf says they're waterproof,flexible and over~paintable.no real bonding properties. Got to be better than silicon(bloody 'orrible stuff!) and almost as cheap. Anybody tried it/got opinions on it? thanks

In my experience quite useless.
Polyurethane sealants appear to be better than silicone, taking considerably longer to set and having a higher tenacity.

 

[nigelmercier]

I didn't know that. The last tube I bought was probably in March, when the s**t was included. The girl in Screwfix was most embarrassed and wouldn't say it.

http://www.bostik.co.uk/diy/product/evo-stik/Sticks-Like-All-Weather-Adhesive-/134

 

[Lakesailor]

I didn't know that. The last tube I bought was probably in March, when the s**t was included. The girl in Screwfix was most embarrassed and wouldn't say it.

F**k me! This aresholing country is becoming a wimp's paradise.....

 

[ffiill]

Íf you need puraflex in quantity google it because you can get it for well under £3 a tube unlike the £3.80 ish you pay at tool station.