Isophthalic Polyester Resin
Build Strength and Stability for Tough Parts
#90 Isopthalic Polyester is perfect for making dimensionally stable polyester molds, fabrication of corrosive service parts, and as a durable repair material for tank linings. This Iso polyester resin offers fast wet-out in spray or hand laminates. When spraying, we recommend using a 1⁄8" nozzle. The 225 degree F service temperature resists exotherm and post cure problems. #90 has better strength properties than a general purpose polyester resin, which allow it to be used in more demanding applications.
Properly fabricated parts may be used in food contact, electrical and military applications.
#90 Isopthalic Polyester resin is formulated for 1.25% MEKP catalyzation. This resin can be purchased alone or as part of a Resin and Hardener Kit.
#90/69-F kit contains (1) QUART RESIN, (1) #69-A.
#90/69-A kit contains (1) GAL RESIN, (2) #69-A.
#90/69-AK kit contains (4) GAL RESIN, (8) #69-A.
5-gallon quantity (#90-B) is considered hazardous (flammable) and will be subject to a hazard charge if shipped by standard ground.
All sizes of #90 (quart, gallon, and 5-gallon) will be subject to a hazard charge if shipped by air.
Please see our Hazardous Shipping Chart for more information about hazard fees. We will consolidate items whenever possible to minimize these fees.
This resin is available in a variety of sizes that include:
One quart (#90-F)
One gallon (#90-A)
A five-gallon pail (#90-B)
One drum (#90-DRUM)
*Quantity discounts are available on the five-gallon pail only, when four or more units are ordered at one time.
This resin can be purchased as part of a kit that includes MEKP catalyst. You should purchase the kit unless you already have hardener in your workshop.
The kits include:
One quart of resin, with one 1 oz. bottle of hardener (#90/69-F)
One gallon of resin, with two 1 oz. bottles of hardener (#90/69-A)
One case of four gallons, with eight 1 oz. bottles of hardener (#90/69-AK)