Epoxy.com Product #504/505


High Temperature Industrial Polyester



Epoxy.com POLYPASTE is a fast-setting industrial filler paste used for manufacturing, fabrication and repair in aircraft, aerospace and other industries having requirements for above normal temperature exposure. Fast and permanent applications are achieved by POLYPASTE. The service temperature of Filler 7 is up to 400 degrees F (205 degrees C). POLYPASTE is used in the construction industry to seal cracks for injection and for patches used on concrete, wood, steel and other suitable construction materials.

Excellent machining and finishing results are accomplished by grinding, sanding, scraping, etc. When exposed to elevated temperatures, POLYPASTE has a tendency to darken but does not gas, bubble, or cause any finish distortion. This product does not contain wax and readily bonds to itself and other substrates such as FRP/SMC, hi-temp epoxy molds, aluminum, steel, cast iron, urethane foam parts, etc. POLYPASTE is non-metallic, non-conductive, and non-sparking.




Surface Preparation

Prior to application, area to be repaired should be roughened and thoroughly wiped clean to ensure proper adhesion.


Mixing Instructions

Thoroughly blend 100 parts resin (a golf ball sized mass) with 2 parts (2? strip) hardener for 1 1/2 minutes in a clean dry container carefully scraping sides and bottom of container during the mixing process to ensure uniformity.



Epoxy.com POLYPASTE should be applied by buttering onto area to be repaired. After material has cured, the repair area can be sanded to desired surface finish.


POLYPASTE should be stored at a temperature less than 75 degrees F. Storage above 75degrees F will shorten the shelf life and render the product unusable. The shelf life for this product is six months.


For industrial use only. Keep away from children. Refer to Material Health and Safety Data Sheet (MSDS form) pertaining to this product before using.

Avoid contact with skin or eyes. In the event of eye splash or contact, immediately flush with water for 15 minutes and contact physician. It skin contact occurs, wash with mild soap and water. Prolonged or repeated exposure may cause skin and eye irritation. It is recommended that the user wear impervious gloves and safety glasses with side shields.



Test Method


Mix Ratio (resin to hardener by wt or vol)


100R to 2H

Viscosity or Consistency @ 77F

ASTM D-2393

Thixotropic Paste

Pot Life (100 gram mass @ 77F

ASTM D-2471

4-7           minutes

Cure Schedule @77F


15-20       minutes





Density (lbs/gal)



Specific Gravity (g/cm3)

ASTM D-1475


Shore Hardness (D)

ASTM D-792


Service Temperature (peak)

ASTM D-2240

400 Degrees F

Stock Colors


Lt. Grey Black, White, Orange