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BonaGapmaster 310ml (Black)

Q: How do you apply? After oiling or before? How do you smooth it for finish?

Application before oiling is preferred otherwise Bona Gap Master may not stick to surface. Smoothing can be done after application with a wet trowel, a wet sponge, or even a wet finger.. For application on oiled or pre-lacquered surface, slightly sand the areas where the sealant has to be applied.

Q: can this be used on stick down Vinyl floor tiles? attempting camper van conversion and few joints separated over night.

Good Morning, Interesting question, it is designed for use on wood or wall substrates, however it may work for your vinyl floor tiles, I could give no guarantees. I would have to recommend a test area first to check for adhesion to the flooring.

Q: Is this suitable for outdoor use? Also one reviewer said chart is out of sync. I need a light oak any suggestions?

Hi The Bona Gapmaster is designed for use around wooden floors and internal trims. The product is UV stable so will not break down due to exposure to sunlight. That said it is designed for internal usage and does not come with the anti-fungal properties that products designed for damp/wet areas would have. We will be uploading a better chart for colours and request Amazon to add to this listing.

Product ID: 88111540

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Details

Brand
Bona
Specific uses for product
floor
Material
Polyacrylate
Item form
Paste
Special feature
Odorless and

⏳18-24h drying time

📏6m coverage per tube

🖤Sleek black finish

Frequently Bought Together

Bona Gapmaster 310ml (Black)

BONA AF4411311200 Joint Sealant 310 ml Dark Oak

BONA Joint Sealant 310 ml Light Oak

Description

🖤 Seal the deal with BonaGapmaster – flawless floors, zero compromises!

FAST DRYING - Ready for sanding and finishing in just 18-24 hours
EFFORTLESS USE - 310ml tube designed for efficient, mess-free application
SEAMLESS FINISH - Odorless, silicone-free formula ensures a clean, professional look
PRECISION COVERAGE - Seal gaps up to 5mm deep and 10mm wide with ease
VERSATILE APPLICATION - Perfectly sandable and overcoatable with all floor finishes

BonaGapmaster 310ml (Black) is a high-performance, odorless polyacrylate gap filler designed for floor applications. It covers up to 6 running metres per tube for gaps up to 5mm deep and 10mm wide, dries within 18-24 hours, and is fully sandable and overcoatable with floor finishes. Silicone-free and packaged in a convenient 310ml tube, it delivers a sleek black finish ideal for professional-grade floor repairs.

Specifications

Manufacturer	Bona
Part Number	AF4411312000
Product Dimensions	30 x 5 x 5 cm; 997.9 g
Item model number	AF4411312000
Size	310ml
Colour	Black
Material	Polyacrylate
Volume	310 Millilitres
Item Package Quantity	1
Special Features	Odorless, Sandable and overcoatable with floor finishes, Silicone-free
Usage	floor
Batteries included?	No
Batteries Required?	No
Item Weight	998 g

Have a Question? See What Others Asked

How do you apply? After oiling or before? How do you smooth it for finish?

Is this ok for laminate flooring

can this be used on stick down Vinyl floor tiles? attempting camper van conversion and few joints separated over night.

Is this suitable for outdoor use? Also one reviewer said chart is out of sync. I need a light oak any suggestions?

Reviews

A**R

This stuff is amazing, none of the mess of silicone Highly Recommended

Used this to seal the back of worktop, so much easier to work with than silicon which leaves a film over everything. This wipes off with water when applying and looks great.

28.02.2023

S**6

Great for the purpose, chose black for natural effect

Great product, we first tried without applying masking tape on the floorboards and it made a mess. We then taped around the gaps in between floorboards,and applied the product and it turned out neat and clean. We chose black colour, so after the floorboards have been sealed with this product, it still looks natural and if the gap is still there, which is perfect for a natural rustic look. The only one thing I noticed is that it seems to shrink a bit over time, and when fully cured we noticed cracks and gaps here and there. Which we will go over . But overall great product and really recommend!

3.05.2025

D**E

Great for filling gaps between wooden floors

Great product for filling in gaps you get when a wooden floor becomes a bit loose. Easiest way to apply this is to use masking tape either side, then I took the nozzle off and pumped it onto my finger so that I could get more down into the gap giving it a better finish! Remove masking tape after about an hour, looks amazing! I filled my gaps in black as I am going to stain the floor black, do the gaping before staining.

8.04.2020

T**H

Yep, works perfectly

Fantastic stuff, filled the gaps and stayed there.

23.01.2023

C**E

Easy to use, easy to smooth, easy to clean up

Bought because it came in black, to caulk a joint between two dark painted pieces of wood. Worked perfectly for the job. Consistency of regular caulk, easy to clean up with a damp cloth. Easy to smooth into the joint. Hasn’t cracked after 2 months use 👍

25.11.2020

M**R

Time wasted

Disappointed in the product. Impossible to get a continuous bead. Didn't do what it said on the tin !!!

17.12.2017

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