• Fast wet out
  • Cures with hard surface. No Surface Tack.
  • Cures at room temperature with the addition of MEKP catalyst
  • No sagging on vertical surfaces
  • Thixotropic
  • Ships within one business day


100% MONEY


Sku: 02050220020110

Fiberglass Warehouse Ortho Polyester resin with wax is a general purpose orthophthalic (ortho) polyester resin. It cures with a hard surface.  Sanding will be needed between layers.  Pre-promoted for curing at room temperature with the addition of methyl ethyl ketone peroxide (MEKP) initiator. Fiberglass Warehouse Ortho Polyester resin with has a clear amber tint to it.


-Boat construction and repair

-Molding, fabrication and repair of fiberglass laminates

-Spray up process

-Hand lay-up application

-Base resin for polyester fairing putties and structural compounds


-Work area and resin should be between 70°F and 75°F for best results.

-Make sure the work area is well ventilated and wear proper safety clothing including gloves and a face mask.

-MEKP catalyst is needed for polyester resin to cure.  It should be added between 1-2% based on the volume of the resin. More or less than this will cause an improper cure.  Cure time and pot life will vary depending on percentage of MEKP added and the temperature of the room.  If 1% MEKP is added, there will be a longer pot life and it will cure slower than if 1.5% or 2% MEKP is added.  Same goes for temperature.  Lower temperatures result in a slower pot life/cure time than if working in higher temperatures.  Orca 200 is promoted to gel in 17-23 minutes at 77°F when catalyzed at 1 percent (approx. 1 tsp per pint).

-Apply using a fiberglass roller, brush, spreader or squeegee

-Sanding needed between layers

-Uncured polyester resin can be removed from tools and equipment with acetone.

Available Sizes:

Quart, Gallon, 5 Gallon

Drums are available. Please call for pricing.

Handling and Storage:

Closed containers should be stored in a cool, dry place.  It should be stored at temperatures below 75°F and away from sunlight and heat sources. 

Orca 200 with Wax is guaranteed for 3 months but should last 6-12 months if stored properly.

***Always try out a small test batch first.  Working with resin is more of an art than a science***

Prop65 Warning Icon WARNING: This product can expose you to chemicals including Styrene which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov


Question: Do I need to sand between layers?

Answer: No. This resin does not contain wax which makes it unnecessary to sand between layers.

Question: What do I do to get a tack free finish on the final layer?

Answer:You can add wax/ surface seal for the final layer or use a polyester finishing resin.