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( 9 Reviews ) Write a review on this product!
  • 1/2 oz. Bottle
  • 1 oz. Bottle


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This is the hardening catalyst for use with Castin' Craft Clear Casting Resin. The catalyst MUST be combined with the casting resin for any hardening to take effect.

The following is a guide to the recommended ratios for use of casting catalyst with clear casting resin:

Formula for one layer: if layer is 1/8 in. thick, use 15 drops per ounce of resin. If layer is 1/4 in. thick use eight drops per ounce. If layer is 1/2 in. thick, use six drops per ounce. If layer is 3/4 in. thick, use five drops per ounce. If layer is 1 to 1-1/2 in. thick use 4 drops per ounce.

For multi layer projects (especially when embedding items into it): first layer use five drops per ounce, for the second layer use four drops per ounce, for the third layer use three drops per ounce and for additional layers use two drops per ounce.

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Product Questions and Answers

Would it be a bad idea to use Castin' Craft Resin Catalyst in a resin mix?

- Asked by Pam Shipman on 24-May-13

The CastinCraft Catalyst can be used with the CastinCraft Resin.

- Answered by MisterArt on 24-May-13

Does this dry clear?

- Asked by Christi on 04-Nov-12

Yes, Castin' Craft Clear Casting Resin does dry clear.

- Answered by MisterArt on 08-Nov-12

Ask a Question About Clear Casting Catalyst

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Customer Product Reviews

Rated by: Jeanne W. in Glen Ellen, CA
I am a novice at resin casting but found the Environmental Tech products to be easy to use. The instructions were very clear and with minimal experimentation I was able to get it right.
Rated by: Richard G. in Albuquerque, NM
The Clear Casting product line is really very good. It is getting harder and harder to find this kind of materials as most places have gone to an epoxy style casting media. Use all safety directions and be careful. This stuff isn't good to get on you or breath. It is worth the trouble however!
Rated by: John B. in P. C., FL
A crucial ingredient to a Great Craft!
Rated by: EVELYN T. in rootstown, OH
Works well.
Rated by: Paula B. in Hackettstown, NJ
Worked Great - just as described. Easy to follow instructions - even for a beginner.
Rated by: Carl H. in Blue Ridge Summit, PA
Worked great!
Rated by: Cara W. in Lawrence, KS
Easy to use, worked great.
Rated by: heidi a. in Newark, OH
The product worked great, just like it is suppose to!

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