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RDR-3350 High Impact/High Temp Tooling Epoxy 450° F

Model: 1851

Starting at: $89.60

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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. 

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.

Use the RDR-3350 Resin with the  RDH-9234 Hardener.

This product is sold by weight. 8 Lbs = aprox 1 Gallon; 45 Lbs = aprox 5 Gallons.



Pot Life @ 72oF (200g mass)  150 minutes
Ratio by Weight   100 pbw to 25 pbw
Ratio by Volume  4 to 1
Flexural Strength @ 72°F 55,000
Flexural Strength @ 350°F  36,000
Flexural Modulus @ 72°F   6.25 x 106
Flexural Modulus @ 350°Fo
4.10 x 106
Hardness, Shore “D” @ 72oF  85-90
Hardness, Shore “D” @ 350oF  84-86
Heat Distortion      
Specific Gravity, Resin  1.18
Co-Efficient of Linear Thermal Expansion  3.4 x 106/°C
Shelf Life Resin / Hardener  1 year

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 Drums and Totes.

sdsRDR-3350 SDS

TDSRDR-3350 RDH 9234 TDS

pdfPremium Resin Tech Product List

PDF Epoxy Mixing Guide

  • Model: 1851
  • 37 Units in Stock
  • Manufactured by: Premium Resin Tech

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