WEST SYSTEM | SKU: 655-4039 | Barcode: 811343011192

WEST SYSTEM 403 Microfibers Adhesive Filler

$26.03

In stock

- Ships same or next business day.

Size

6 oz (403-9) 20 oz (403-28) 20 lb (9.07 kg) (403-B)

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Description

Fine-fiber additive for thickening mixed epoxy into a wood-bonding adhesive. Useful for gap filling while retaining wetting of wood fibers. Dry filler only; epoxy resin and hardener are sold separately.

Select one size or package from the options. Sizes shown together in a family photo are alternatives, not a combined order.

Choose your size or package

Specification	6 oz (403-9)	20 oz (403-28)	20 lb (9.07 kg) (403-B)
Manufacturer part number	403-9	403-28	403-B
Package	6 oz	20 oz	20 lb (9.07 kg)

Manufacturer product information. Follow the product label and current manufacturer instructions for preparation and application.

Selecting and using this filler

Primary application	Wood bonding and gap filling.
Color	Off-white
Base system	WEST SYSTEM 105 Resin with a compatible 200-series hardener
Curing agent	None: this is an additive, not a resin or hardener

First proportion and mix the resin and hardener correctly, then add filler to achieve the consistency required for the application. Filler does not replace hardener or change the resin-to-hardener mixing ratio. Use the manufacturer's filler guide to choose between adhesive bonding and fairing products.