Model # FLD4-04

Internet #100130893

Store SKU #483702

Flood Penetrol 1-Qt. Clear Paint Additive


Penetrol 1-Qt. Clear Paint Additive

Frequently Bought Together

Product Overview

Designed to help minimize frustration and fatigue in painting projects, the Flood Penetrol 1-qt. Clear Paint Additive is added to exterior alkyd and oil-based paints to help prevent brush marks and leveling problems without cutting the paint. This product can be applied under various weather conditions.

California residents: see   Proposition 65 information

  • Use to fortify exterior oil-based and alkyd paints
  • Oil-based formula applies easily under a variety of weather conditions for your convenience
  • Helps eliminate brush and roller marks for professional results
  • Levels paint to help provide a smooth finish
  • Subject to or will include a recycling fee in the following states: CA, OR, CT

Info & Guides

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Customer Questions & Answers

Can this product be used in polyurethane finishes?

Asked by: Jimbo
I have used this product when applying polyurethane on oak stained window trim. I learned this from painter. Add small amounts and will allow final cost to glide on without any effects. I have done this for about 20 years now.
Answered by: Tomk28
Date published: 2017-03-31

what is the mix ratio when adding to flood cedar tone deck stain?

Asked by: Piddler74
The Flood Cedar Tone Deck Stain already contains Penetrol and no more should be added to the product
Answered by: Flood Product Expert
Date published: 2016-07-15

Dear Flood, can I use this for the painting process described below to achieve a quality high-gloss finish?

On unfinished wood or MDF sanded with 120-grit sandpaper, 2 coats of brush-applied general-use oil-based primer, sanding with 220-grit paper between coats, allowing sufficient time for drying. Add Penetrol in the correct proportions to high-gloss oil-based rust-prevention paint. Paint three coats of additive-enhanced oil-based rust-prevention paint, sanding with 220 between coats, allowing sufficient time for drying. Finish with 400-grit sandpaper and then #0000 steel wool. Apply automotive rubbing compound and buff. Apply automotive car wax paste and buff. Is there anything I need to watch out for? I've avoided using brand names but I'm sure you can figure out the specific common primer and paint brands I'm talking about.
Asked by: BuyerBeware22
Hello there. It may be best that you speak to one of our woodcare specialists directly. If you would like feel free to contact us at 800-321-3444 between 9am-5pm EST Monday-Friday or by email at We'd be happy to answer any product questions or concerns you may have.
Answered by: Flood Product Expert
Date published: 2016-04-19

Reducing brush marks using Pettit Easypoxy.

Is this product compatible with Pettit Easypoxy Topside boat paint? Thanks
Asked by: LT
Check out Roll and tip, I just did a 22' Skiff craft Boat using the Roll and Tip way. I added Penitral to the white finish and it turned out great , looks sprayed . I used it with Pettit Easypoxy , No problems. Bill, BEEF CREEK BOAT WORKS
Answered by: BEEF
Date published: 2016-01-11
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Customer Reviews

Penetrol 1-Qt. Clear Paint Additive is rated 5.0 out of 5 by 5.
Rated 5 out of 5 by from Works for cheap paint You don't need this product at all if you use the sherwin Williams pro classic line-it self levels.
Date published: 2017-02-21
Rated 5 out of 5 by from This product is the PERFECT SOLUTION for thinning your paint, when you plan to spray!! The title pretty much spells it out!! I use a high volume, low pressure sprayer, is this is the ONLY way to thin it out to the right consistency, without using thinner, which will not work properly!! Just follow the directions on the can, and you'll be amazed!!
Date published: 2012-04-27
Rated 5 out of 5 by from roll and brush like spray paint I discovered penetrol almost by accident. I have used it to paint numerous pieces of furniture. leaves no brush marks or roller marks on horizontal surfaces. I use it with rust-oleum oil paint makes kid proof furniture that looks like it was sprayed painted.
Date published: 2015-07-08
Rated 5 out of 5 by from This product is amazing! The additive is amazing on dull figerglass. My boat's hull was very faded. I applied Penetrol and it looked like new. Very easy to use.
Date published: 2012-04-20
Rated 5 out of 5 by from Skiff Craft Boat I used this on my skiff Craft boat for the White and varnish , Unbelievable results, best stuff ever!
Date published: 2016-01-10
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