Search found 6 matches

by John_C
Fri Aug 28, 2015 6:39 am
Forum: Painting
Topic: Painting over Epoxy
Replies: 8
Views: 3120

Painting over Epoxy

Hey guys,

I'm in the final stages of fiberglassing and I'm wondering how long I need to let the epoxy dry before I can paint.

Thanks,
-John
by John_C
Sun Aug 16, 2015 9:45 pm
Forum: Fiberglass
Topic: Poxy-Shield and humidity
Replies: 5
Views: 3468

Re: Poxy-Shield and humidity

I agree with what Bill said. I've had trouble with clarity for bright finish in high humidity but not had trouble with bonding. After some experience I now prefer to do fiberglassing for bright finish with the MAS epoxy that Glen-L also now sells. It seems to stay perfectly clear in a wider range o...
by John_C
Sun Aug 16, 2015 7:20 pm
Forum: Fiberglass
Topic: Poxy-Shield and humidity
Replies: 5
Views: 3468

Re: Poxy-Shield and humidity

Thanks for the reply, Bill.

I'm in south-eastern Wisconsin. I live a couple miles from Lake Michigan so it gets pretty humid here in the summer.

The fiberglass will be painted over so clarity isn't an issue. As long as it's smooth and bonds well to the plywood it's fine.
by John_C
Sun Aug 16, 2015 3:23 pm
Forum: Fiberglass
Topic: Poxy-Shield and humidity
Replies: 5
Views: 3468

Poxy-Shield and humidity

Hi, I'm ready to start the fiber-glassing process. However, it's been fairly humid lately and it doesn't look like it will end soon. It's been in the low to mid 80s with 60-70% relative humidity, and Glen-L's Poxy-Shield directions state not to use in the resin in high humidity. Do you think the hum...
by John_C
Thu Aug 13, 2015 9:45 pm
Forum: Fiberglass
Topic: Epoxy fiberglass over polyester filler?
Replies: 8
Views: 11819

Re: Epoxy fiberglass over polyester filler?

You will be fine. Epoxy will bond to quite a number of surfaces "including" polyester resins. Just rough up the surface so you will get the maximum mechanical bond from your epoxy. In general the process won't work the other way around - polyester will not adhere well to epoxy, although WEST System...
by John_C
Tue Aug 11, 2015 9:24 pm
Forum: Fiberglass
Topic: Epoxy fiberglass over polyester filler?
Replies: 8
Views: 11819

Epoxy fiberglass over polyester filler?

]Hi, I'm building a 13' fisherman (My first boat) and I'm just about ready to fiberglass, using the appropriate epoxy fiberglass kit from glen-L. I was reading over the instructions on glen-L's "how to fiberglass a plywood boat" page and and noticed that it says "Do NOT use polyester-based putties" ...