Hi-Heat Filler Paste #18

Printable Data: TDS Sheet


HI-HEAT FILLER No. 18 is a two component polyester filler paste system. No. 18 is formulated to offer the user a hi-heat filler paste exhibiting the ultimate in a creamy smooth texture and the very desirable quality of being “tack free” after cure. The smooth texture allows for easier troweling and sanding to obtain a feather like edge on the cured paste. In addition the “tack free” nature of the cured paste prevents sandpaper from becoming gummy. The paste can easily be tapped from the sandpaper allowing the paper to be used again.


  • Aircraft panel filling
  • RIM, BMC, SMC surface filling
  • Bonding inserts and bushings
  • Pattern repairs and filling
  • Crack, crevice, and hole repair
  • Router fixture repair
  • Core box repair
  • Vacuum mold repair
  • Fiberglass boat repair
  • Urethane mold repair
  • Filling porosity on composites
  • Wallpaper cosmetic filling
  • Filling cloth texture impressions

Additional information


Grey & Black

Mix Ratio (pbw)

100 to 2

Viscosity (mixed at 77°F/25°C)

thixotropic paste

Pot Life @77°F/25°C (minutes)

6 – 8

Tack Free (minutes after gelation)


Finishing Schedule (minutes after gelation)

15 – 25

Hardness (Shore D)