We have a thin gap between a metal tile edge and a tile. Would this set well and fit into cracks and be fully waterproof with daily showers?

This compound is very strong and would do the job if you are okay with a black shiny finish between tile and metal edge. It mixes to quite a thin runny liquid but starts to go hard within minutes, so may not be easy to apply over a long section. While it would be waterproof and very strong, a good alternative would be a good quality silicone sealant of the same or close colour to the tile grout. It should be a mould free variety.

Does it work as a filler?

When you initially mix the two parts the compound becomes a sticky liquid form and begins to harden. If you intending to use it as a filler it will pour out of any area that's not horizontal. It's primary is to bond but it will fill small gaps that are flat...

Does it remain black after sanding?

From what I can remember when I used it it was a dark grey/black colour when sanded down. It can be painted over.

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🖤 Bond it like a pro—strong, fast, and built to last!

BUILT TO ENDURE - Resistant to water, chemicals, and heat—perfect for demanding environments.
PRECISION APPLICATION - Compact 25 ml size with medium-high viscosity for controlled, gap-filling repairs.
FAST EFFICIENT FIXES - Set in just 15 minutes to get you back on track without the wait.
UNMATCHED BONDING POWER - Achieve permanent repairs with 3770 PSI strength that outperforms typical epoxies.
VERSATILE MATERIAL COMPATIBILITY - Seamlessly bonds plastics, composites, metals, concrete, and more for all your repair needs.

The Simply 50139 J-B Weld PlasticBonder is a high-strength, black epoxy adhesive designed for permanent plastic and composite repairs. With a bonding strength of 3770 PSI, a quick 15-minute set time, and resistance to heat, water, and chemicals, it delivers durable, versatile fixes across multiple materials in a convenient 25 ml package.

₨565

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Manufacturer	JB WELD LTD
Brand	J-B Weld
Model	JB50139
Product Dimensions	4 x 3 x 18.5 cm; 60 g
Item model number	50139
Manufacturer part number	50139
Special Features	Heat Resistant, water resistant
Item Weight	60 g
Viscosity	Medium to High

Simply 50139 J-B Weld PlasticBonder- Black,25 ml

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