Aqua Coat Clear Grain Filler
Backorder Item
This item is currently on backorder. We are accepting orders and will ship as soon as stock is replenished.
Satisfaction Guarantee
Satisfaction Guarantee
If for any reason you are not satisfied with any stock item purchased from Highland Woodworking, return it to us within 60 days of receipt (30 days for Festool tools) and we will promptly replace it or refund the purchase price of that item, according to your preference.
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Shipping & Delivery
Shipping & Delivery
Orders are processed soon after receipt and are usually shipped within 2 business days via FedEx ground or US Mail, depending on location and weight.
We do not ship combustible materials by air.
If we are out of stock on an item, we will either back order or cancel that item according to any special instructions entered with your order or our ability to source the product.
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California Customers - Prop 65 Warning
California Customers - Prop 65 Warning
This product may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, see www.P65Warnings.ca.gov.
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Aqua Coat is a water-based, clear and transparent, wood grain pore filler that’s in a gel format. It fills the pores on open grain woods like walnut, mahogany, oak and ash. Filling the open grain on these woods will help your film-style applied top coats (brushed or sprayed-on finishes that create a film coating) look as glass smooth as possible. Without grain filling, your top coats of finish can have difficulty completely filling the open pores of the wood and thus the final finish will not appear smooth and level.
Aqua Coat is fast drying, taking about 30-45 minutes per coat. Two to three coats are recommended to fill most grain. Aqua Coat can be applied after a stain because it’s water clear and fills the pores while remaining invisible, unlike clay-based pore fillers. If desired, Aqua Coat can be tinted with water based dyes and tints for color matching or contrasting effects. You can top coat over Aqua Coat with solvent and water-based lacquers and polyurethanes, as well as shellac.
It has minimal odor, low VOC’s, is non flammable, cleans up with water, sands easily and has minimal shrinkage. Use a flexible plastic spatula or putty knife to spread and work into the pores (a credit card works).
You can also use it to fill pores on wood projects that you want to paint, like with degraded oak kitchen cabinets you wish to paint over and don’t want the grain appearance to telegraph through the new paint.
Keep from freezing.
Made in the USA


