Ship hardener WS207A

Description
Special Clear Hardener 207 is formulated for use with WEST SYSTEM 105 epoxy resin where an extremely clear, moisture‑resistant natural finish is required. When mixed with 105 resin, the 105/207 system resists reddening and clouding in wet conditions and produces thin films that spread and level smoothly. Sold without pump.

Key technical performance

• Pot life at 25°C: 20–30 minutes
• Cure to solid at 21°C: 9–12 hours
• Curing to maximum strength at 21°C: 5–7 days
• Minimum recommended working temperature: 16°C
• Consumption (for 1 kg of mixture at 25°C): porous surface 7–8 m²; non‑porous surface 9–10 m²
• Contains UV inhibitor (long‑term UV protection required with marine paint or 2‑component UV varnish)

Usage and handling

• Intended for application of fiberglass coatings and fabrics, bonding and laminating where a clear finish is required.
• Dosing: use matching mini‑pumps for exact 1:1 proportions (one pump stroke resin = one pump stroke hardener).
• Mixing: blend resin and hardener for at least two minutes (longer at low temperatures); scrape sides and bottom while mixing.
• Pump compatibility: Model A pumps (ws303‑A) recommended. Product sold without pump.

Cure times and conditions

• Pot life at 25°C: 20–30 minutes
• Solid cure at 21°C: 9–12 hours
• Full strength at 21°C: 5–7 days
• Minimum working temperature: 16°C

Consumption

• For 1 kg of mixed 105/207 at 25°C — porous surface: ~7–8 m²
• For 1 kg of mixed 105/207 at 25°C — non‑porous surface: ~9–10 m²

Volume discounts

• 2 — 4% — Up to €3.16
• 3 — 6% — Up to €7.11
• 4 — 8% — Up to €12.64
• 7 — 10% — Up to €27.65

Data sheet

• Brand: WEST SYSTEM
• Product name: Special Clear Hardener 207
• Reference / SKU: WS207A
• EAN / GTIN‑13: 5063369020701
• Net weight: 0.300 kg
• Pack weight shown in title: 290 g
• Product type: Special clear hardener for epoxy 105
• Finish: Clear, moisture resistant
• Adhesion: suitable for bonding and laminating
• UV protection: contains UV inhibitor (additional long‑term protection required)
• Pot life (25°C): 20–30 minutes
• Cure to solid (21°C): 9–12 hours
• Full strength (21°C): 5–7 days
• Minimum working temperature: 16°C
• Consumption: ~7–8 m²/kg porous surface; ~9–10 m²/kg non‑porous surface
• Pump compatibility: matching lettered pump (Model A / ws303‑A)