SIRAMICO COATINGS Liquid Rubber Roof Coating, Black, 500ml

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Product guide

SIRAMICO COATINGS Liquid Rubber Roof Coating, Black, 500ml

SIRAMICO COATINGS Liquid Rubber Roof Coating is a 500ml black liquid coating intended for roof waterproofing and leak sealing. The listing describes brush-or-roller application in one coat without primer, but customer feedback is mixed on drying and thickness, so those claims are not a guarantee of an easy application.

At a glance

The manufacturer describes a single-coat application without primer, using a brush or roller.
The listed compatible surfaces include asphalt, brick, concrete, GRP, metal, felt and OSB.
The manufacturer claims the coating forms an elastic membrane that can expand and contract with the surface.

Price

£14.44Save 15%

Reference price: ~~£16.99~~

Price checked: 12 Nov 2026

View offer

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Pros and cons

Pros

A 500ml quantity and black finish are specified, with several roof and building surfaces listed as compatible.
Brush-or-roller application and the claim that no primer or second coat is needed may suit small DIY sealing jobs.

Cons

Customer feedback is mixed on drying time and thickness, including reports that it may not dry as expected or may be difficult to spread thinly.

Technical specifications

9 specifications

Identity and format
Brand	SIRAMICO COATINGS
Colour	Black
Form	Liquid
Material	Rubber
Pack quantity	1
Manufacturer part number	SIRAM-LRC500ml

Dimensions and installation
Weight listed	0.6 Kilograms

Materials and protection
Water resistance listed	Waterproof
Compatible materials listed	Asphalt, Brick, Concrete, GRP, Metal, Felt, OSB

What to know before buying

Listing details to confirm

Listing details state that the coating is quick drying and intended to seal in one coat, while customer feedback on drying time and thickness is mixed. Treat the application and performance statements as manufacturer claims, not guaranteed results. The listed 500ml volume is separate from the stated item weight.

What’s in the box

Included

Paint can

Who is it for?

A good fit for

DIY buyers seeking a small-volume black liquid coating for roof repairs on one of the listed compatible surfaces.
Buyers who can apply the coating by brush or roller and are comfortable allowing for variable drying and spreading experiences.

Less suited to

Projects needing a confirmed coverage area, application temperature, curing time or quantified service life, as these details are not provided here.

SIRAMICO COATINGS Liquid Rubber Roof Coating, Black, 500ml · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 827 ratings

5 stars76%76%
4 stars15%15%
3 stars5%5%
2 stars1%1%
1 star3%3%

Customer feedback highlights ease of application, leak prevention, waterproofing and the finished appearance, including reports of use on felt roofs. Drying time and thickness divide experiences, with some customers reporting quick drying and others saying it did not dry or was hard to spread thinly. For buyers considering this 500ml coating, that mixed feedback matters because the listing's quick-drying, single-coat claims do not ensure consistent handling. Value-for-money opinions are also mixed.

Positive themes

Customers describe it as easy to apply, particularly on felt roofs, and report positive leak-sealing and waterproofing experiences.
Customers also mention a pleasing finish and appearance.

Negative themes

Some customers report that it does not dry as expected and is difficult to apply thinly.

Mixed feedback

Drying time and thickness receive both positive and negative feedback.
Opinions on value for money differ.

Frequently asked questions

What quantity and colour is listed?

The title gives 500ml and black. The details list the volume as 500.0 millilitre.

Which surfaces does the listing name as compatible?

It lists asphalt, brick, concrete, GRP, metal, felt and OSB.

Does it require a primer or second coat?

The manufacturer claims no primer or second coat is needed and describes application with a brush or roller. Customer feedback reports mixed experiences with thickness and drying, so the result may vary.