Adhesive Fillers vs. Fairing Fillers
Fillers are used to thicken the basic resin/hardener mixture for specific applications. Each filler possesses a unique set of physical characteristics, but they can be generally categorized as either Adhesive (high-density) or Fairing (low-density).
Adhesive filler mixtures cure to a strong, hard-to-sand plastic useful in structural applications like bonding, filleting and hardware bonding.
Fairing filler mixtures cure to light, easily sandable material that is generally used for cosmetic or surface applications like shaping, filling or fairing.
ADHESIVE FILLERS
403 Microfibers
403 Microfibers, a fine fiber blend, is used as a thickening additive with resin/hardener to create a multi-purpose adhesive, especially for bonding wood. Epoxy thickened with microfibers has good gap-filling qualities while retaining excellent wetting/penetrating capability. Color: off-white.
404 High-Density Filler
404 High-Density filler is a thickening additive developed for maximum physical properties in hardware bonding where high-cyclic loads are anticipated. It can also be used for filleting and gap filling where maximum strength is necessary. Color: off-white.
405 Filleting Blend
This strong, wood-toned filler is good for use in glue joints and fillets on naturally finished wood. It mixes easily with epoxy and lets you create fillets that are smooth and require little sanding. Its color is a consistent brown, so 405 can be used to modify the shade of other WEST SYSTEM fillers.
406 Colloidal Silica
406 Colloidal Silica is a thickening additive used to control the viscosity of the epoxy and prevent epoxy runoff in vertical and overhead joints. 406 is a very strong filler that creates a smooth mixture, ideal for general bonding and filleting. It is also our most versatile filler. Often used in combination with other fillers, it can be used to improve the strength, abrasion resistance, and consistency of fairing compounds, resulting in a tougher, smoother surface. Color: off-white.
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Size |
Item # |
Price |
| Microfibers |
6 oz |
403-9 |
$8.65 |
| 20 oz |
403-28 |
$20.85 |
| 20 lb |
403-B |
$187.25 |
| High-Density Filler |
15 oz |
404-15 |
$11.95 |
| 43 oz |
404-45 |
$28.75 |
| 30 lb |
404-B |
$207.35 |
| Filleting Blend |
8 oz |
405 |
$12.90 |
| Colloidal Silica |
1.7 oz |
406-2 |
$7.95 |
| 5.5 oz |
406-7 |
$20.45 |
| 10 lb |
406-B |
$211.95 |
Deduct 10% from List Prices shown.
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FAIRING FILLERS
407 Low-Density Filler
407 Low-Density filler is a blended microballoon-based filler used to
make fairing putties that are easy to sand or carve. Reasonably strong
on a strength-to-weight basis. Cures to a dark red/brown color.
410 Microlight™
410 Microlight™ is the ideal low-density filler for creating a light,
easily-worked fairing compound especially suited for fairing large areas.
Microlight™ mixes with greater ease than 407 Low-Density filler or microballoons
and is approximately 30% easier to sand. It feathers to a fine edge and
is also more economical for large fairing jobs. Not recommended under dark
paint or other surfaces subject to high temperatures. Cures to a tan color.
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Size |
Item # |
Price |
| Low-Density Filler |
4 oz |
407-5 |
$13.60 |
| 12 oz |
407-15 |
$34.45 |
| 14 lb |
407-B |
$359.45 |
| Microlight™ |
2 oz |
410-2 |
$12.95 |
| 5 oz |
410-7 |
$26.75 |
| 4 lb |
410-B |
$245.05 |
Deduct 10% from List Prices shown.
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420 Aluminum Powder 420 Aluminum Powder provides limited protection from ultraviolet light in areas that will not be protected with other coatings. Can be used as a base for subsequent painting. 420 will increase the hardness and abrasion resistance of the coated surface and improve its moisture resistance. Cures to a metallic gray color. Add to mixed resin/hardener at the rate of 5 to 10% by volume (approximately 6 oz. per B group).
422 Barrier Coat Additive
A proprietary blend designed to improve cured epoxy's moisture-exclusion
effectiveness. 422 is used as a barrier coating additive to help prevent
gelcoat blistering. 422 also increases the epoxy's abrasion resistance.
Cures to a light gray color. Add to mixed resin/hardener at the rate of
15 to 20% by weight - 3 tablespoons per 8 fl. oz. epoxy (approximately 32
oz. per B group).
423 Graphite Powder
423 Graphite Powder is a fine black powder that can be mixed with WEST SYSTEM epoxy to produce a low-friction exterior coating with increased
scuff resistance and durability. Epoxy/graphite is commonly used as a bearing
surface, and as a coating on rudders and centerboards, or on the bottoms
of racing craft that are dry sailed. It does not provide antifouling qualities.
The epoxy/graphite mixture can also be used in teak deck construction to
simulate the look of traditional seams and to protect the epoxy from sunlight.
Cures to a black color. Add to mixed resin/hardener at the rate
of up to 10% by volume (approximately 5.7 oz. per B group).
Color Pigments
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WEST SYSTEM pigments are epoxy-based liquid colorants used to tint the epoxy mixture to provide an even color base for the final finish system. The colored surfaces also tend to highlight flaws and imperfections. Cured, pigmented epoxy surfaces are not a final finish surface, but require an additional opaque or UV filter coating for ultraviolet protection. Add to the mixed resin/hardener at a rate of approximately one teaspoon of pigment to 8 fl. oz. of epoxy. More pigment will increase opaqueness and mixture viscosity. One 4 fl. oz. bottle will tint approximately 2/3 gal. of epoxy.
501 White Pigment.
503 Gray Pigment.
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Size |
Item # |
Price |
| Aluminum Powder |
6 oz |
420-6 |
$10.40 |
| 16 oz |
420 |
$20.10 |
| Barrier Coat Additive |
16 oz |
422-16 |
$20.60 |
| 44 oz |
422-48 |
$49.50 |
| Graphite Powder |
6 oz |
423-6 |
$8.55 |
| 12 oz |
423 |
$13.60 |
| White Pigment |
4 oz |
501-8 |
$14.20 |
| Gray Pigment |
4 oz |
503-8 |
$14.20 |
Deduct 10% from List Prices shown.
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Episize™ Unidirectional Carbon Tapes Carbon fiber unidirectional reinforcing tapes are used to improve tensile and compressive strength and stiffness in one direction while adding minimum thickness and weight. Fiber bundles are held in place by a polyester fill thread for easy handling and wet out. 0.015" thickness.
702 (144k fibers/inch width). Available in 1 1/2" wide x 12', and 50' rolls.
703 (144k fibers/inch width). Available in 3" wide x 12', and 50' rolls. 713
Episize™ Unidirectional Glass Tape
11.1 oz. E-glass fiber unidirectional reinforcing tape is used to add strength in one direction, but with less stiffness than carbon fiber. Easy to handle and wet out. Average tape thickness is 0.0125". Available in 3" wide x 12', and 50' rolls.
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727 Episize™ Biaxial Tape 15 oz. non-woven E-glass fabric. Two layers at a ±45° fiber orientation are held together by a light stitching. Flat, non-crimped fibers yield reduced print-through and higher stiffness than woven fabrics. Ideal for repairs, tabbing and reinforcing. Available in 4" wide x 10', and 20 yd. rolls.
737 Episize™ Biaxial Fabric
15 oz. non-woven E-glass fabric. Two layers, ±45° fiber orientation. For composites, repairs and reinforcing. Achieves high fiber-to-resin ratio with hand wet-out. Available in 50" wide x 20 yd. roll.
738 Episize™ Biaxial Fabric with Mat Backing
15 oz. non-woven E-glass fabric. Two layers, ±45° fiber orientation. The same as 737 fabric with a 0.75 oz./sq. ft. mat backing. Approximately 22 oz./sq. yd. total fabric weight. Available in 50" wide x 20 yd. roll.
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Episize™ Glass Tape Versatile WEST SYSTEM EpisizeTM 9-oz. woven fabric tapes are ideal for reinforcing chines, hull/deck corners and similar structural applications. When bonded with WEST SYSTEM epoxy, they provide additional tensile strength to resist hairline crack development and abrasion.
729: 2" wide x 10', and 50 yd. rolls.
731: 3" wide x 50 yd. roll.
732: 4" wide x 10', and 50 yd. rolls.
733: 6" wide x 50 yd. roll.
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Episize™ Glass Fabrics
Fabrics are ideal for building composite laminates and repairing fiberglass structures. May also be used to provide an abrasion-resistant covering for wooden structures. When wet-out, the 4 and 6 oz. fabrics become transparent, allowing a clear, natural wood finish. May be painted or varnished.
740: 4 oz.- 50" wide x 10 yd., and 20 yd. rolls.
742: 6 oz.- 60" wide x 10 yd., and 20 yd. rolls.
745: 12 oz.- 30" x 30" sheet, 60" wide x 10 yd., and 20 yd. rolls.
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Size |
Item # |
Price |
| Unidirectional Carbon Tapes |
1.5" x 12' |
702-12 |
$49.40 |
| 1.5" x 50' |
702-50 |
$128.10 |
| 3" x 12' |
703-12 |
$60.90 |
| 3" x 50' |
703-50 |
$169.05 |
| Unidirectional Glass Tapes |
3" x 12' |
713-12 |
$32.35 |
| 3" x 50' |
713-50 |
$75.75 |
| Biaxial Tape |
4" x 10' |
727-10 |
$11.80 |
| 4" x 20 yds |
727-20 |
$44.80 |
| Biaxial Fabric |
50" x 20 yds |
737-20 |
$432.10 |
| Biaxial Fabric with Mat Backing |
50" x 20 yds |
738-20 |
$559.35 |
| Glass Tapes |
2" wide |
2" x 10' |
729-10 |
$7.65 |
| 2" x 50 yds |
729 |
$40.30 |
| 3" wide |
3" x 50 yds |
731 |
$60.05 |
| 4" wide |
4" x 10' |
732-10 |
$12.10 |
| 4" x 50 yds |
732 |
$74.90 |
| 6" wide |
6" x 50 yds |
733 |
$104.95 |
| Glass Fabrics |
4 oz |
50" x 10 yds |
740-10 |
$143.90 |
| 50" x 20 yds |
740-20 |
$248.50 |
| 6 oz |
60" x 10 yds |
742-10 |
$168.55 |
| 60" x 20 yds |
742-20 |
$286.25 |
| 12 oz |
30" x 30" sheet |
745-30 |
$16.50 |
| 60" x 10 yds |
745-10 |
$303.10 |
| 60" x 20 yds |
745-20 |
$557.70 |
Deduct 10% from List Prices shown.
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NOTE: Used improperly, some products can be very harmful.
Click here to view safety information.
Prices are subject to change without notice.
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