blanks sucking resin?

General Discussion
1

Hi Guys

Had a bit of an issue recnetly with my blanks sucking resin whist curing - put the bottom on one yesterday and took time to check carefully all around - even left a little more resin on just to make sure I wasn't scarping it too thin. Left it curing over night and theres air been drawn in around the bottom half of the rail lap.

Is this likely to be caused by lower temperatures whilst curing??? I had a heater on in the workshop whilst laminating, the resin left in the bucket had kicked completely when I left but I switched the heater off as I left. Guess it was about 10 degrees centigrade outside yesterday after I'd glassed.

This happened to another board I did recently but that time it was the deck and I got an awful lot of air - managed to fix it by 'massaging' a thinned out hotcoat (with much less cat than usual into the deck with my hands before finally brushing it out - fixed it perfectly!

Cheers

Rich

2

shoot it hotter,after it gels shoot a cheater(lam resin)

3

be careful with the heater, Ive' had my fire no thanks .Jon Riddle almost burnt his mothers house down in the early 70s'

4

My immediate thought was;  EPS/Epoxy or PU/Poly?  If the latter then rio's solution should work.

5

I had a blonde moment ! duh ?? .yeah this will only work for poly

6

If EPS/Epoxy your problem could be the result of a few differant things.  I'm sure someone will chime in who has more experience with epoxy than I do.

7

If EPS/Epoxy your problem could be the result of a few differant things.  I'm sure someone will chime in who has more experience with epoxy than I do.

8

pre-lam the blank…post lam the glass/lam.

 

herb

9

Rio, wait till you try Kwik Kick ... doesn't drain even on PU ... even on EPS that isn't sealed.

10

i like it already !!!

 

herb

11

Here's my problem, If I mix hotter on the lam coat I have even less time to get it all down...I'm slow at the best and panicking to get a clean job most of the time...I guess that's where experience kicks in...

Shooting a cheater coat? - I guess you mean just another layer of lam resin over the glass after first attempt? What interval between stages and what mix?

Cheers

Rich

12

both under the glass and over it.

herb

13

Hi Herb

Never done a cheater coat - know nothing about it...what mix should I use? how should I apply to painted blank? how long do I leave till I laminate? Should I do both sides of board with cheater coat before laminating - or just as far round as lap will go?

Cheers

Rich