Official Resin Thread

I've found polyester to be very brittle on its own. If you drop it or drill it, good chance its going to crack.
 
Last edited by a moderator:
Polyester is rarely used for cast pieces, though. In large quantities, it gives off so much heat as it cures that it tends to ruin the mold it's in, as well as distort itself. Too much in one batch can start an exotherm and catch fire. (No, really- I wanted to see it for myself, and mixed up about a half a quart and left it in a paper cup. It started on fire and made a horrible mess.) Usually, "cast resin" refers to urethane-based casting resins, which are the white or bone colored resins previously spoken of. Urethanes are very strong and durable.
 
Last edited by a moderator:
I got a solid resin custom blaster that is made from resin and i cant get any kind of paint to stick, you can scrape it right off, I have not tested rustoleum yet.

Any suggestions for paint?
 
Last edited by a moderator:

cal196 wrote:

I got a solid resin custom blaster that is made from resin and i cant get any kind of paint to stick, you can scrape it right off, I have not tested rustoleum yet.

Any suggestions for paint?

Have you washed and cleaned the blaster with good hot soapy water and rinsed it well before painting???

You have to wash resin parts to remove any mold release agents as will not let paint stick to well.

I would also prime the peice with grey auto primer before putting the main color coat down.

Lynn
 
Last edited by a moderator:
Have you washed and cleaned the blaster with good hot soapy water and rinsed it well before painting???

You have to wash resin parts to remove any mold release agents as will not let paint stick to well.

I would also prime the peice with grey auto primer before putting the main color coat down.

Lynn

What HE said! :D
 
Last edited by a moderator:
I havent washed it but I sanded a spot pretty good and sprayed it, and didnt have any luck. but I will try washing it.
 
Last edited by a moderator:
After washing, try painting with Krylon fusion. I know it only comes in gloss, but you can paint over it.
 
Last edited by a moderator:
I used the krylon touch and it seems to be holding up, its not scraping off. I did clean it with a mild paint thinner so maybe that helped.

I had the same problem with my gauntlets I got in a hurry and didnt wash them off and the paint didnt stick at all.

Thanks for the advice.
 
Last edited by a moderator:
Wal-mart $99 acylic enamel did the job. I bought that fusion stuff, I tested a spot and it never set-up after 4 days it was still tacky so I thinnered it off.

I definitly do not recommend it for resin.
 
Last edited by a moderator:
maybe if you take glue, and paint it over the surface it will stick.

just a thought, cause the glue will stick, and most likely not come, off I'd just let it sit for alittle while, then put primar on it, then see if the paint sticks.
 
Last edited by a moderator:

Zam I Am wrote:

Just wondering if anyone knows of a resin casting supplier that sells quality resin for less than $75.00 a gallon for the 1:1 ratio kind. I looked on the net, and no answers on the RPF. Anyone have any clues? Tanks.

looks around... I get mine for 25.
 
Last edited by a moderator:
I've done some experimenting with heat on Sintra and PVC.. how tolerant is resin towards heat ei.. does it "brown" and "bubble" easily?

btw. the thicknes is only 2-3 millimeters ( 1/10 inch ?? )
 
Has anyone every worked with Castin' Craft Polyester Casting Resin? I was wondering, because I saw that I could get a gallon for pretty inexpensive. Thought I'd ask before buying. :) It's about 42.00 a gallon, just FYI.

And do all Resins need a catalyst to cure? Just curious, because this brand does.
 
This thread is more than 19 years old.

Your message may be considered spam for the following reasons:

  1. This thread hasn't been active in some time. A new post in this thread might not contribute constructively to this discussion after so long.
If you wish to reply despite these issues, check the box below before replying.
Be aware that malicious compliance may result in more severe penalties.
Back
Top