Osmo Interior Gap Sealer

Name: Osmo Interior Gap Sealer
Rating: 4.81 (32 reviews)

4.8/5 (32 reviews)

Colour

size

310ml

£7.73

Quantity

An easy-to-use interior sealer for effective filling of gaps and joints in wood and walls.

Features

A professional, all-in-one interior gap sealer
For wood, plaster, concrete, stone and brick work
Seal gaps around skirting boards, window and door frames
Very good adhesion on many porous surfaces
Stays elastic, so will not crack and fall out of filled gaps
Forms a permanently water-repellent layer after curing
Resistant to changing environmental conditions
Can be painted over and contains no oil
Acrylic-based

Brand

Osmo

No. of coats

1 coat

Size

310ml

MPN

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GTIN

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Overview

Osmo Gap Sealer is a high quality, one component, flexible gap filler that has plasto-elastic qualities. It can be used for filling, fixing and repairing all manner of splits and gaps, as well as sealing and filling joints on both finished and unfinished wood flooring, skirting board and door thresholds.

Coverage is dependent on gap width and depth, but as a guide, based on 3mm gaps, a 310ml tube will fill around 30 linear metres.

This product is compatible with the Osmo Gap Sealer Gun Applicator
Looking for an alternative wood filler for interior use? Try Osmo Interior Wood Filler

RAL Colours

Below is a list of the corresponding approximate RAL shade for each colour:

Product Colour Approximate RAL Colour White RAL 9010 Pine/Spruce RAL 1001 Light Oak RAL 1002 Medium Oak RAL 8001 Dark Oak RAL 8024 Red Wood RAL 8012 Walnut RAL 8007 Grey RAL 7035 Black RAL 8022

Preparation

Surfaces must be clean and dry, removing all traces of dust and dirt before application. No primer is required for non-porous surfaces.

Cut the dome seal of the tube with a sharp knife, taking care not to damage the thread
Screw the nozzle on to the tube
Cut nozzle top at angle to suite size and shape of gap to be filled
Porous surfaces such as concrete, stone, cement and plaster can be primed with a mixture of one part acrylic sealant and 4-5 parts water

Application

Always do a test area before starting any project to assess product suitability and final finish. Follow the manufacturer's instructions on the tube at all times. For the best results, application temperature should be between: 5°C and 40°C.

Apply Osmo Gap Sealer to gaps between joinery and other substrates of between 5mm/25mm (recommended joint depth/width ratio is 1 to 2)
Immediately after the application, smooth the sealant at once with wet finger or a wet tool
Excess gap sealant can be removed with a damp, lint-free cloth
Keep the sealed joint dry for at least two hours
Cured sealant can be removed mechanically

FAQ

Q. Can Osmo Gap Sealer be used for filling gaps between floor and skirting boards?

A. Osmo Gap Sealer is perfect for filling and sealing the gap under skirting board edges or between skirting boards and walls. It's flexible so can move with the wood, and is available in a range of colours to blend in with surrounding floor, skirting board and wall finishes. This makes it the ideal choice as a skirting board filler.

Datasheets

Technical Information Safety Information

5 stars: 27 (84%)
4 stars: 4 (13%)
3 stars: 1 (3%)
2 stars: 0 (0%)
1 star: 0 (0%)

Seals welk

Having received a damaged tube Wood Finishes quickly sent another which was fine. Efficient service.

Very good with no fumes

Good product with no obvious voc smell. Easy to apply

We have struggled for several years with split in our kitchen worktop.

Very easy to use filler. Works well. Does not contract and easy to finish.

Easy to use

Easy to use though would have preferred a lighter shade

Top quality

Used this when filling a gap on a black floor nice quality like all osmo products

Easy to handle, apply and smooth when dry

Great customer service, have used it on two occasions, very satisfied with results

Lasts a long time

Have previously used the light oak 3 years ago. Still usable expect the same with the dark oak. Well worth the cost.

Good

It is pliable and easy to shape

See below

Did what it said on the tin. Dressed the beam beautifully & has provided a waterproof barrier as required.

Right colour for gaps in floor

Bought this to fill some gaps between wooden floors after radiators fitted. Right colour easy to use and very flexible

Good colour and working properties

The sealer is smooth and works really well. Being black can look messy but sanded and finished it really adds to the character of the old pine flooring.

Haven't actually used it but I love osmo

Haven't actually used it but I love osmo so I'm sure it's great

Excellent product

Great product does exactly what it says on the tube would definitely use it again

It has come away a little around the sink and I'm having to reapply it.

Messy to use

Good colour match to old elm floorboards

Excellent product

Bought to fill gaps in a pine floor - colour matches extremely well and application is straightforward. Additional sealer can be removed from around gaps with a finishing pad and/or trade wipes. Extremely high quality product.

Great

Would buy again if i needed to. thank you

Effective and fairly easy to use

Used it to fill a 'decorative' groove in a sideboard top, which kept filling with crumbs etc. Required 3 or 4 applications, with sanding between each, and finally 3 coats of clear varnish, so a lot of labour. The end result looks good and seems to be wearing well.

Couldnâ€™t find this in local builders merchants

Excellent for filling gaps in timber floors

Itâ€™s durable

Does what it says and the colour is walnut just what I wanted

Fantastic product

Great product easy to work with.it does exactly what it says on the packaging .I had few gaps between solid oak joints as the 'flooring professional 'didn't do job properly, but this really helped me to correct his mistake.would definitely buy again if needed( hopefully not :) )

The best way to fill the gap

Certainely the best solution to seal woodenfloor's gaps. Easy to use, and no more drafts!

Great colour match.

I bought this sealer to cover a tiny machined gap in some solid oak that had been bothering me for some time. I couldnt decide on the correct shade so I bought the light and medium gap sealers. I ended up using the light oak as it dries slightly lighter than when it comes out the tube. It can be sanded if required when cured equally easily removed with a damp cloth before its cured. Takes the Poly oil and practically disappears and blends into the wood perfectly. Highly recommended. Fast service too from WFD.

Brilliant. Love working with osmo products

Easy and pleasant to apply and the same to sand. Osmo polyx oil covers it well too.

Good product

Bought to fill oak skirting works well and a good colour match.

Easy to use and an excellent gap filler.

Easy to use and time will tell how durable it will be.

Excellent, will always come back to this site first

Searched high and low for a colour match for floor and skirking gaps, this blended in well and is easy to work and has very good exp'/contraction properties.Know where to order if need any more in varied colours.Can recommend more highlythan many other I have tried.

Excellent product, well worth the money

I have purchased several Osmo wood products and I have been very pleased with quality and finish of all the items. I would recommend buying Osmo products.

Excellent service good product once you know how best to apply it.

I ordered Gap Filler on two occasions, the second time because i under ordered first time around (the gaps were bigger and deeper than estimated). The Gap filler works well and has provided an excellent finish once the floor has been oiled, but it took some time to figure out the best way to apply it. After much despair trying to scrape the wet excess product off off the gap / wood with a scraper, I found the best thing to do is to apply generously into the gap allowing it to protrude above the floor board level and then leave it for 1 hour or so to partially dry. After an hour take a sharp stanley knife blade and cut off the excess pushing the blade forward to cut the excess off rather than dragging it. You do not want to get the product smeared onto the floor boards at any cost because it will look terrible when it dries as it wont be the same colour as the wood. Some of the product shrank in the large gaps but i just went over these with some more filler and again cut off the excess. Once finished the floor was oiled using OSMO OIL. On each occasion the products arrived very quickly and were well packaged. Wonderful service overall. Would definitely recommend.