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The best penetrating primers in comparison

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Last updated on 24.04.2025

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Resincoat Deep Penetrating Epoxy Primer (5Kg)

Resincoat

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9,9

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Features

Easy to use - UK Manufactured
Excellent sealing properties
Superb coverage rates (20+ sqm 5kg)
Suitable for a wide range of surfaces including damaged, friable and weak floors or where deep penetration of the substrate is required to act as a barrier

Everest Trade - Penetrating Polyurethane Concrete Dustproofer/Floor Primer & Sealer (Clear, 5 Litre)

Everest Trade Paints

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9,8

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Features

For Use With Everest Trade Polyurethane Floor Paints
Manufactured to ISO9001 Standards to Ensure Quality
Provides A Great Base Coat For Floor Paints On Bare Concrete.

Action Can | RP-90 Rapid Penetrating Oil TwinSpray | 500ml

Action Can

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9,7

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Features

TwinSpray professional-grade applicator with dual-action spray system and a fixed-in straw.
Contains moly for easy reassembly
Loosens surface rust flash rusting

Recommendation

OWATROL Rustol – Colourless Rust Stop Penetrating Metal Surfaces Plastic Glass Wood – Primer and Undercoat – Multi-Surface Rust Varnish – 5 L

OWATROL

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9,7

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Features

Easy to use
Additive for paints and varnishes

£ 118.94

£ 127.58

£ 129.15

Womersleys Lime Green Silic8 PS1 Penetrating Primer 5.5KG

Womersleys

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9,7

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Lime Green Silic8 PS1 is a fluid mineral based plaster primer which is designed to control many high suction backgrounds whilst still remaining vapour open

Sempre - Grunt W 5l Priming agent – A deeply penetrating water-based primer for brick concrete plasterboard- universal ready to use priming agent

Generic

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9,6

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Features

balances the absorbency of the substrate
for paints, fillers and adhesives

Barrettine Premier Universal Wood Preserver (Clear, 5L) - Deep Penetrating Oil Based Preserver for Over Painting/Coating, Suitable for Indoor & Outdoor Use

Barrettine

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9,5

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UNIVERSAL WOOD PRESERVER - Barrettine Clear Universal Wood Preserver penetrates wood & stone easily and thereby gets deep into inner layers. It is moisture regulating and provides an adhesive surface suitable for glues, fillers, and solvent or water-based finishing treatments such as paints, varnishes, stains and more.
DEEP PENETRATING WOOD PRESERVATIVE - This is a colourless high-quality, low odour oil Spirit wood preservative that is deep penetrating. This wax-free primer Wood Preservative is used for wood protection against wood-destroying fungi (wet rot), wood discolouring fungi and wood-boring insects.
CLEAR FINISH - The Barrettine Wood Preserver provides a colourless finish as a wood primer for further overcoating with paint or varnish. Quality primer resins for excellent adhesion.
INTERIOR & EXTERIOR WOOD TREATMENT - The wood preserver outdoor & indoor be used on untreated wood or treated timber outdoors and also for use on windows frames, external doors frames (internal & external sections). Also suitable for structural timbers in indoor unoccupied areas, such as floor joists.
EASY APPLICATION - When using the oil based primer as part of a DIY project, use a brush and roller. When using the quick dry preserver professionally, use a brush, dip and roller. Protect your environment. such as soil and plants, from splashes of NPCU and do not apply in damp conditions or if rain is imminent.

£ 41.03

£ 42.42

Coo-Var Penetrating Wood Primer (2.5ltr, White)

9,4

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Ceresit CT17 - Primer Profi (10)

Ceresit

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9,4

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Features

Deep penetrating, quick drying.

Conpart Hydrosol Deep Primer LF 1004 Solvent-Free Deep Penetrating Special Primer 10 Litres

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9,3

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Features

Hydrophobic set
Water-dilutable and odourless
Colour green transparent

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.

You might also be interested in these penetrating primers.

LEVEL PLUS 02 Deep Primer 10 L Acrylic Base Deep Primer Indoor Outdoor Discolouration-Free Ready to Use Deep Penetrating Adhesion Promoter

The Tiefgrund Level Plus is solvent-free and permeable to water vapour. Virtually no layer after drying and causes the surface to be hydrophobic.

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Everest Trade - Penetrating Polyurethane Concrete Dustproofer/Floor Primer & Sealer (Clear, 20 Litre)

For Use With Everest Trade Polyurethane Floor Paints

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Bonda Marine G4 Primer Sealer 2.5kg, Clear, (BON12184)

Made of quality material

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Polycell One Coat Damp Seal 500ML

One coat matt white finish

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Everbuild 406 Quick Drying Stabilising Solution – Clear – 5 Litre , Pack of 1

VERSATILE Suitable for use on interior and exterior surfaces.

~~£ 17.82~~ free shipping

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E-TECH TECHNIK 2 in 1 Filler and Primer – 400ml

"High build" and easy sanding provide great surface levelling properties

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Owatrol Primer AP.60 Decorating Primer and Finish - 2.5 l - Matte Black

Matte decorating primer and finish

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TOUPRET WALL HARDENER - Penetrating Substrate Hardener 1KG 20102

Can be left unpainted

~~£ 24.81~~ free shipping

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RONSEAL RSLWPCL5L 5 Litre Total Wood Preserver - Clear

It is an ideal pre-treatment for interior and exterior wood and suitable for overpainting

~~£ 37.79~~ free shipping

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Blackfriar Floor Sealer Solvent Based - 5 Litres

Size 5 litre

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TRADE SUPPLIES UK - Extreme Clear Polyurethane Concrete Primer & Sealer - All In One - Clear, Hard-Wearing, Durable, Stops Concrete Dust, Bonds Paint, Easy Application - 20L

Strong Adhesion & Bonding Ensures a solid bond between concrete and paint for flawless results and prevents delamination of heavy topcoats.

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SmartSeal Damp Proof Black Paint - 10 Litres - For Interior & Exterior Walls, Ceilings and Floors. Helps Prevent Water-Ingress and the Spread of Penetrating Damp.… (Black)

Non-toxic, solvent free formula seals damp patches and prevents penetrating damp from pushing through and spoiling your decor upto 4-5m2 in a 2 coat application

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The best penetrating primers in comparison

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