
WEST SYSTEM–#207-SC Special Clear Hardener
$294.99
Hazard Shipping Information
Standard Shipping (ground service) is used to ship items that are considered hazardous. Delivery is only applicable within the contiguous United States. Additional shipping fees may apply. Signature required for receipt of shipment.
Specs
#207-SC Special Clear Hardener
Name | Value |
---|---|
Best Use | Special Clear Non-Blushing Hardener for 105 Epoxy Resin |
Capacity | 1.45 Gallons |
Cure Time | 10 to 15 Hours (Working Time 100-120 Minutes) at 72 F |
Type | Hardener |
Product Overview
When working with WEST SYSTEM 105 Epoxy Resin, this is the hardener to use where a clear finish is desired.
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.
Other properties
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.
Meter the mix
207 Special Clear Hardener requires mixing with 105 Epoxy Resin at a 3:1 ratio. To make this easy, for Group Sizes A, B and C, we strongly recommend purchase of the 300 Mini-Pump Kit (Model 3405669) which enables mixing the desired quantity in the exact proportions that you need. Large quantities can be metered with the model 306-23 Special Purpose Resin/Hardener pump (Model 128845), which also dispenses hardener and 105 Epoxy Resin at a ratio of 3:1.
Key Features
- 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
Pair the Group Size of the hardener you choose with the correct Group Size of 105 Epoxy Resin.
207 SC-Size hardener should be paired with 105 C-Size Resin.

Advice
The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.
Related West Advisor Articles
Reviews
Product Q & A
Related Items
-
WEST SYSTEM#105-C Epoxy Resin
$369.99