Iso resin is a wax free resin. This resin is generally used in mold making because of its extreme durability. Isophthalic polyester resin also can be used where superior water resistance is desirable.This resin does not have to be used in mold making but, if you want to use it for general resin application the final coat has to have the wax (tack free additive).
We offer three different sizes of hardener with your resin.
The 15cc is enough hardener for a quart at 2%
The 30cc is enough hardener for a gallon at 3/4%.
The 60cc is enough hardener for a gallon at 2%.
If you are glassing below 75 we suggest getting the 60cc per gallon that way you do not run out of hardener. Please check the mek chart prior to ordering so you get the right amount of hardener. If you have any questions please contact us and we will be happy to help. 772-464-0808