General Finishes Seal-A-Cell is an oil-based blend of oils, urethanes and wax that soaks into raw interior wood for a close-to-the-wood, natural look. General Finishes rates it for cabinets, trim, doors and furniture, and says the oils highlight figured grain while the urethane adds durability. It ambers over time. Use it alone, as a base coat under Arm-R-Seal, or as a conditioner to control how oil-based stains take. Everything on this page comes from General Finishes' product page and technical data sheet (March 2020) plus the Seal-A-Cell Clear safety data sheet. Free shipping at $35+ (lower 48 + DC); under $35 ships for $5.99.
Sizes we carry
General Finishes also lists gallons; we do not carry the gallon size today.
Specs from General Finishes
| Type |
Oil, urethane and wax blend (penetrating sealer) |
| Sheen |
Gloss (80+) |
| Interior / exterior |
Interior only |
| Ambering |
Yes; dries amber |
| Coats |
1–2 coats recommended; for more protection follow with 2–3 coats of Arm-R-Seal |
| Application |
Wipe or brush (natural bristle or foam); wipe off excess with the grain |
| Dry time (ideal 70°F / 50% humidity) |
Touch 12+ hours; recoat 24+ hours over raw or stained wood; 72+ hours over an existing sealed finish; cure 30 days |
| Cleanup |
Mineral spirits or waterless hand cleaner |
| Thinning |
Not recommended |
| VOC |
565 g/L (TDS); SDS lists <565 g/L |
| Not for |
Pre-finished wood or non-wood substrates (TDS) |
How to use it (General Finishes directions)
- Prep sand raw wood (open grain to 180 grit; closed grain to 220 grit). Do not sand finer than 220. Remove dust.
- Stir well. Apply a liberal coat with a brush, pad or cloth, then wipe off the excess evenly with the grain.
- As a wood conditioner on cherry, poplar or pine: apply one coat, wipe off, then apply General Finishes oil-based stain right away over the wet Seal-A-Cell. Expect the stain color about 20% lighter.
- For a high-use top (table, desk): General Finishes recommends a Seal-A-Cell base coat to pop the grain, then 2 coats of Arm-R-Seal for durability. Let Seal-A-Cell dry completely before the next coat.
- Water-based products over oil: wait 72+ hours. Oil over water: wait 24+ hours.
- Dispose of oil-soaked rags and brushes in a sealed, water-filled metal container; they can catch fire if left in a pile.
Shop related: General Finishes Arm-R-Seal, General Finishes oil-based wood stain, all General Finishes, and protective finishes and topcoats.
FAQ
Is Seal-A-Cell a stain or a topcoat?
It is a penetrating oil-based sealer. General Finishes says it can stand alone for a natural look, work as a base coat under Arm-R-Seal or Gel Topcoat, or act as a conditioner under oil-based stains.
Seal-A-Cell or Arm-R-Seal?
Seal-A-Cell pops grain with a modified linseed oil blend and stays close to the wood. Arm-R-Seal has more urethane and is the more durable wipe-on topcoat for high-use surfaces. Many projects use Seal-A-Cell first, then Arm-R-Seal on top.
How much will a pint or quart cover?
General Finishes lists about 50–60 sq ft per pint and 100–125 sq ft per quart (roughly 400–500 sq ft per gallon on the product page).
Can I put a water-based topcoat over it?
Yes, after it dries fully. General Finishes says to wait 72+ hours before applying a water-based product over an oil-based one.
Is it for outdoor wood?
No. General Finishes lists Seal-A-Cell for interior use only. For exterior projects see Exterior 450 (off-season for many shoppers) or other exterior lines.
Can I return it?
Flammable liquids like this oil-based sealer can't be returned under our refund policy, so check the size before you order. If it arrives damaged, defective or wrong, email Store@projectweekenddiy.com with photos and we will make it right.
Sources: General Finishes Seal-A-Cell product page (generalfinishes.com/wood-finishes-retail/oil-based-wood-stains-sealers/oil-based-seal-cell-clear, read Nov 6, 2026); Technical Data Sheet Seal-A-Cell (published March 2020); SDS Oil Based Sealer Seal-A-Cell Clear (Danger: Flammable liquid Category 3, UN1263; SDS VOC <565 g/L).
