RJM COMPOSITES LLC
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SL 3500 High Temp TOOLING COMPOUND

Description:

SL 3500 HTTC is a light weight syntactic Epoxy tooling compound. SL 3500 HTTC was developed for high impact strength due to fiber reinforcement and the advanced resin and hardener formulations. Temperature cycling at up to 350 degrees F with intermittent temperatures of 400 F. While SL 3500 HTTC will gel at room temperature, it must be post cured to reach it’s ultimate strength.

Material Handling Properties:

Mix ratio ( Parts by weight) ………………………………………………………………………100R/26H

Density   ……………………………………………………………………………………….... 5.3 lbs/ gal

Specific gravity……………………………………………………………………………………..........-.63

Work time @ 25C/77F……………………………………………………………………………......60 Min.

Demold time ………………………………………………………………………………………. Post Cure

Mixed Viscosity ……………………………………………………………………………..............syntactic

Shelf life ( unopened @ 25C/77F)…………………………………………………………………. One year

Typical Physical Properties:

Ultimate Compressive strength ( ASTM D-695)…………………………………………………..4,900 psi

Ultimate flexural strength( ASTM D-790)…………………………………………………………9,600 psi

Tg by DSC………………………………………………………………………………….........,,.66C/330F

Flexural Modulus ( ASTM D-790)…………………………………………………………….....,530,00 psi

Ultimate Tensile strength ( ASTM D-638)………………………………………………………..35,000 psi

Recommended Cure Schedule:

 2 hours @ 66C/150F

 2 hours @ 93C/200F

 2 hours @ 121C/ 250F

 1 hour  @ 149C/300F

 4 hours @ 177C/350F

* ramp rates should be done at 5 to 10 degrees / min F