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RDR-3350 RDH-9234 High Impact/High Temp Tooling Epoxy 4:1 1.25 Gallon Kit 450° F

Model: 1551-Kit

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RDR-3350 high temperature laminating tooling resin system, cures at room temperature, but requires post cure to obtain optimal phyical properties. RDR-3350 is extremely tough, excellent handling, has good dimensional stability with excellent heat distortion. RDR-3350 is especially suited for tools requiring elevated temperatures. To reach ultimate physical properties, post cure is necessary. Post cure varies depending on the temperature use of the tool. RDR-3350 maximun temperature is 500° F.

This resin can be custom formulated (in larger qty's) to have a pot life from 5 minutes to 3 days. This resin is a thicker resin compared to most RTM resins, however as it was formulated by a composite resin chemist, it does work amazingly well. This resin will cure at ambient temp but to achieve full high temp stability, the part needs to be post cured.

This resin was designed for use in our own production process of composite parts but due to customer request we added this product on our site for purchase. This epoxy is made here in the USA. Hardener is included with this resin.

Upon Completion, the tool should be allowed to cure at ambient temperature for 24 hrs.  Post cure in oven according to the manufacturers schedule for your application.  Post cure schedule ramp up max 50°F every 30 minutes at rate of 2-5°F per minute max. Hold at desired end temperature for 2 hours.

Components to Resin Sytem 2 Parts
Epoxy Part # RDR-3350
Epoxy Volume 1 Gallon
Hardener Part # RDH-9234
Hardener Volume 0.25 Gallons
Epoxy Color Clear
Hardener Color Black
Mixed Color Dark
Mix Ratio - By Weight 100 Epoxy / 25 Hardener
Mix Ratio - By Volume  4 to 1
Flexural Strength @ 72oF  55,000 psi
Flexural Modulus @ 72oF  6.25
Specific Gravity, Resin  1.18
Gel Time @ 25° C / 72° F 150 Minutes (200grams)
Hardness Shore D @ 72° F 85-90
Hardness Shore D @ 350° F 84-86
Shelf Life @ 25° C / 77° F - Epoxy 12 Months
Shelf Life @ 25° C / 77° F - Hardener 12 Months

Upon Completion, the tool should be allowed to cure at ambient temperature for 24 hrs. At that point, apply an oven cure; cycle should be 50 degrees per hour (tool temperature, not air temperature). Not more than 5 degrees per min.
1-Hour 100F , 1-Hour 150F, 1-Hour 200F, 1-Hour 250F, 1-Hour 300F, 1-Hour 350F, 2-Hours 400F, Then Back down the same.


To ensure quality results and proper curing, please make sure to use the resin shortly after purchase. This resin is also available in 5-Gal Pails, Drums and Totes.

sdsRDR-3350 SDS


TDSRDR-3350 RDH 9234 TDS

pdfPremium Resin Tech Product List

PDF Epoxy Mixing Guide

  • Model: 1551-Kit
  • Shipping Weight: 14lbs
  • 42 Units in Stock
  • Manufactured by: Premium Resin Tech

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