West System 207-Sa Special Clear Hardener 0.66 Pint

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Part# 207-SA
MFR Model# 243891


West System 207 Special Clear Hardener is formulated for coating and fiberglass cloth application where a clear, moisture-resistant, result is preferred. For fiberglass layups over wood, 207 Special Clear Hardener allows the natural grain of the wood to show through. Other uses include carbon fiber layups where a clear effect is desired. This hardener cures to a light amber color, similar to traditional spar varnish.

207 Special Clear Hardener is formulated to self level for smooth finishes, and for wetting out and bonding fabrics. Although it provides good physical properties for general bonding applications, it is more difficult to thicken and less cost effective for this purpose than 205 or 206 Hardeners. Although it contains a UV stabilization additive, it still requires long-term UV protection with a quality marine paint or varnish.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Excellent for use in hot or humid conditions
  • Produces a clear, low-blush finish
  • Provides excellent adhesion for bonding applications
  • Contains UV stabilization additive, but still requires long term UV protection with quality marine paint or varnish
  • 300 Mini-Pump Kit recommended for Group Sizes A, B, and C
  • 306-23 Special Purpose Resin/Hardener Pump (Model 128845) recommended for large quantities


Best Use Special Clear Hardener for 105 Epoxy Resin
Capacity 0.66 Pint
Cure Time 10 to 15 Hours (Working Time 100-120 Mintues) at 72 F
Type Hardener

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I expect this to do the job I want, casting some small projects.

Noel B Verified Purchase


July 17, 2021


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is this a pint or 0.66 pt? The title says 1 pint the description says 0.66

It is 0.66 pint. We have updated the title.

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