C.G.Edwards & Co.Inc.

272 Dorchester Ave, P.O.Box 358
Boston, MA 02127
Phone: (617)268-4111-4112 * Fax:617-268-8845
Email: websales@cgedwards.com

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Fillers & Additives

Fillers are used to thicken the basic resin/hardener mixture for specific applications. Each filler posesses a unique set of physical characteristics, but they can be generally catagorized as either adhesive (high density) or Fairing (low density).

Adhesive Filler Mixtures cure to a strong, hard to sand plastic, usefull in structural applications like bonding, filleting and hardware bonding.

Fairing Filler mixtures cure to a light, easily sandable material that is generally used for cosmetic or surface applications like shaping, filling or fairing.

Adhesive Fillers
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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 thickend with microfibers has good gap filling qualities while retaining excelent wetting/penetrating capability.

Color:   Off White

403-9 Microfibers 6 oz $ 13.75
403-28 Microfibers 20 oz $ 31.50
403-B Microfibers 20 lb $ 264.95

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404 High Density Filler
404 High Density filler is a thickening additive developed for maximum physical properties in hardware bondingwhere high-cyclic loads are anticipated. It can also be used for filleting and gap filling where maximum strength is necessary

Color: Off-white

404-15 High Density Filler, 15.2 oz $ 17.95
404-45 High Density Filler, 45.6 oz $ 39.95
404-B High Density Filler, 30 lb $ 289.95

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405 Filleting Blend
This strong, wood toned filler is good for use in glue joints and fillets on naturallly finished wood. It mixes easily with epoxy and lets you create fillets that are smooth and require little sanding. It's color is a consistant brown, so 405 can be used to modify the shade of other WEST SYSTEM fillers
405 Filleting Blend, 8 oz $ 19.95

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406 Colloidal Silica
406 Colloidal Silica is a thickening additive used to control the viscosity of the epoxy and prevent in vertical and overhead joints. 406 is a very strong filler that creates a smooth mixture, ideal for general bonding and filleting.It ia also WEST SYSTEM'S most versitile filler. Often used in combination with other fillers, it can be used to improve the abraision resistance, strength and consistancy of fairing compounds, resulting in a tougher, smoother surface.

Color:   Off White

406-2 Colloidal Sillica 1.7 oz $ 13.87
406-7 Colloidal Sillica 5.5 oz $ 32.50
406-B Colloidal Sillica 10 lb $ 299.95

Fairing Fillers

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407 Low Density Filler
407 Low Density filler is a blended microballon based filler used to make fairing putties that are easy to sand or carve. Reasonably strong on a strength to weight ratio.

Cures to a drak red/brown

407-5 Low Density Filler 4 oz $ 20.95
407-15 Low Density Filler 12 oz $ 48.95
407-B Low Density Filler 14 lb $ 517.66

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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 Microballons and is aproximately 30% easier to sand. It Feathers to a fine edge and is also more economical for large fairing jobs.
Not recomended under dark paint or other surfaces subject to high temperatures.

Cures to a tan color

410-2 Microlight 2 oz $ 19.95
410-7 Microlight 5 oz $ 39.88
410-B Microlight 4 lb $ 349.95


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420 Aluminum Powder
420 Aluminum Powder provides limited protection from ultraviolet light in areaswhich will not be protected with other coatings. Can be used as a base for subsequent painting. 420 will increase the the hardness and abrasion resistance of the coated surface and improve it's moisture resistance.

Cures to a metallic grey color

420-6 Aluminum Powder 6 oz $ 11.95
420 Aluminum Powder 36 OZ. $ 59.95

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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 alsoincreases the epoxy's abraision resistance.

Cures to a light grey color

422 Barrier Coat 16oz $ 29.95

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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. 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

423 Graphite Powder $ 21.95

Color Pigments

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WEST SYSTEM pigmentsare epoxy based pastes that can be used to tint the epoxy mixture to provide a base color for the final finish system.
501 White Pigment 6 oz $ 20.50
503 Grey Pigment 6 oz $ 20.50

Please Note:
With all the recent cases of on-line credit card and Identity theft,
we feel obliged to inform our customers that neither
C.G. Edwards Co Inc. or Boxell's Chandlery,
under any circumstance sell or divulge any personal information about our customers,
nor do we in any way store confidential information on our server.
Please be assured that we will continue to do everything within our power to keep any
information submitted by our customers as secure as we possibly can.

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This page updated January 18, 2021

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