West System Brand Qualifies for Free Shipping West System Brand Epoxy Resin .98 Gallon #105-B

WEST SYSTEM Epoxy Resin .98 Gallon #105-B

$122.82 $162.52 -25% OFF

WEST SYSTEM Epoxy Resin .98 Gallon #105-B

$122.82 $162.52 -25% OFF

WEST SYSTEM Epoxy Resin .98 Gallon #105-B

$122.82 $162.52 -25% OFF

SKU: WSB-105-B

UPC: 10811343010000

More about this item

WEST SYSTEM 105-B Fiberglass & Repair

105 Epoxy Resin is the foundation of the WEST SYSTEM epoxy system, serving as the base material for all WEST SYSTEM compounds. This .98 gallon container is ideal for frequent users who need reliable, high-performance epoxy resin for professional marine construction and repair work.

Versatile Base Resin:

This clear, pale yellow, low-viscosity liquid resin (approximately 1000 cP at 72°F) is formulated for use with WEST SYSTEM hardeners and can be cured in a wide temperature range to form a high-strength solid with excellent moisture resistance. The low viscosity ensures easy mixing, thorough wet-out of reinforcing fabrics, and complete penetration into wood fibers.

Superior Bonding Properties:

105 Resin is designed specifically to wet out and bond wood fiber, fiberglass, reinforcing fabrics, and a variety of metals when combined with WEST SYSTEM hardeners. The formulation creates strong, durable bonds that withstand the demanding conditions of marine environments.

Safer to Work With:

Unlike polyester or vinylester resins, 105 Resin contains no volatile solvents, produces no strong solvent odor, and has a relatively low flash point. This makes it safer and more pleasant to work with in enclosed shop environments while still delivering professional-quality results.

No Shrinkage After Curing:

105 Resin does not shrink after curing, ensuring dimensional stability and preventing the stress cracks and voids that can occur with shrinking resins. This property is critical for structural applications and precision work where dimensional accuracy matters.

Versatile Applications:

When used as an adhesive, 105 Resin mixtures will bridge gaps and fill voids when modified with WEST SYSTEM fillers. The cured epoxy can be sanded and shaped for fairing and finishing work. When mixed with 207 Special Clear Hardener, it cures clear to achieve a natural finish perfect for bright-finished wood applications that will be coated with varnish.

Key Benefits:

  • Low Viscosity: Approximately 1000 cP at 72°F for easy application
  • High Strength: Forms strong, rigid solid when cured
  • Excellent Moisture Resistance: Ideal for marine environments
  • No Volatile Solvents: Safer to work with than polyester resins
  • No Shrinkage: Maintains dimensional stability after cure
  • Wide Temperature Range: Can be cured in various conditions
  • Versatile: Works with all WEST SYSTEM hardeners and additives

Common Applications:

  • Bonding and laminating wood, fiberglass, and composites
  • Coating and sealing wood surfaces
  • Saturating reinforcing fabrics
  • Structural bonding and repairs
  • Gap-filling and void-filling when modified with fillers
  • Clear coating for bright-finished wood (with 207 Hardener)

Important Note:

105 Resin must be mixed with a WEST SYSTEM hardener (205, 206, 207, or 209) to cure properly. The choice of hardener determines working time, cure speed, and specific performance characteristics. See product charts for fabric and surface coverage information.

This .98 gallon container provides substantial material for frequent users and professional operations who rely on the proven performance of WEST SYSTEM 105 Epoxy Resin.

Part Number: 105-B
UPC Code: 10811343010000

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