# 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.

- [Original product page](https://bargainpostbox.co.uk/product/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [View offer](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: SIRAMICO COATINGS
- Category: Tools & Garden > Hardware & Building Materials
- Price: 14.44 GBP
- Previous price: 16.99 GBP
- Discount: 15%
- Price checked: 2026-11-12T19:09:54.379Z
- Rating: 4.6 / 5
- Reviews: 827

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## 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.

## 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.

## 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

## Before you buy

- 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.

## In the box

- Paint can (Included)

## 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.

## Customer feedback

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.
- Positive themes: 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.
- Mixed 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.

## Alternative options

- [SIRAMICO COATINGS Liquid Rubber Roof Coating, Instant Leak Seal – Black, 5L \| Quick drying, one coat waterproofing roof sealant with instant leak seal technology. Black.](https://bargainpostbox.co.uk/visit/siramico-coatings-black-liquid-rubber-roof-coating-5l)
- [Stormdry One Coat Liquid Rubber \(500ml, Black\) - Waterproof Leak Sealer \| Quick-Dry Leak Seal for Emergency Roof and Gutter Repair on Brick, Concrete, Metal, Roof Felt \| Self-Levelling](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [WYCOON Invisible Waterproof Sealant 1KG, Transparent Liquid Sealant for Leak Repair, Waterproof Adhesive Coating for Indoor & Outdoor Use, Roof, Bathroom, Shower](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [Rubber Liquid Waterproof Sealant, TUFINEIN Quick Drying Multi Surface Foundation Leak Repair - Roof Gutters Basement Sealer Waterproof - Indoor & Outdoor Flexible Rubber Paint \(Black, 1.5 KG\)](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [Polar Bitumenseal - Bitumen Paint Waterproof Roof Sealant - Grey - 5L \| Solvent-Free Waterproof Roof Paint - Seals Leaks & Cracks On Roofs, Gutters, Drainpipes, Concrete, Metal & Bitumen Surfaces](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [Liquid Rubber Waterproof Sealant & Paint 1L – Elastic Membrane Seals Leaks on Roofs, Gutters & Foundations \| Waterproof Repair Coating for Brick, Wood, Metal, Concrete, Stone, Rubber](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [PROXINOVA Liquid Rubber Roof Sealant Black 750 ml – Waterproof Paint & Leak Sealer for Roof Tiles, Gutters, Chimneys, Skylights – Outdoor UV Resistant Coating, Easy to Apply](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [SIRAMICO COATINGS Liquid Rubber Roof Coating, Instant Leak Seal – Grey, 5L \| Quick drying, one coat waterproofing roof sealant with instant leak seal technology. Grey.](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-grey-5l)
- [Polar LeakFix Fibred Roof Coating - Waterproof Roof Sealant - Black - 1L \| One-Coat Fibred Sealant - Leak & Crack Repair for Roofs, Gutters and Drainpipes - UV Resistant - No Primer Needed](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [FOME FLEX Bitumen Sealant – Waterproof Outdoor Sealing Compound for Roof, Gutter, Joint Repairs and Asphalt Cracks – Strong Adhesion Surface, Weather-Resistant for Outdoor Applications 1x300 ml](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [Gorilla Waterproof Coat & Seal Clear, 473ml - Weatherproof Liquid Sealant \| Stops & Prevents Leaks \| For Roof Tiles, Brick, Wood, Metal, Concrete, Stone, Rubber, Plastics\*](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [ProDec Short Handle Tar Brush for Applying High Viscosity Coatings \| Including Tar, Bitumen, Roof Coatings & Resin On Roofs, also Asphalt Road Repairs & Cleaning Hard Surfaces Including Brick &](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)

## Add-ons

- [Gorilla Waterproof Patch & Seal Tape Black 3m](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)
- [Target Control Pond Liner Repair Kit 3M x 100mm Black Butyl Waterproof Tape \| Self-Adhesive Outdoor Patch & Seal Strip for Leaks, Gutters, Roof Flashing, Pipes, Pools, Showers and Wet Areas](https://bargainpostbox.co.uk/visit/siramico-coatings-liquid-rubber-roof-coating-black-500ml)

## Images

![SIRAMICO COATINGS Liquid Rubber Roof Coating, Black, 500ml — 1](https://bargainpostbox.co.uk/i/bBKt569681eHswg5nsOSpEHFNW1V4MIXxLjjhQZv_KeuM-o3NJJk2NXzyMrM0426cIFJYiU20HORnqHumFAx5yyYhG2FBhaMnhUC-kh19cjGMGBjJ821.jpg)

![SIRAMICO COATINGS Liquid Rubber Roof Coating, Black, 500ml — 2](https://bargainpostbox.co.uk/i/qN0dMEFCzUZ4vttiptKkJDBRoDlsbAZJNEPskBGyNc87VuDifltw5oHO2J6LdabZwYUWnU3zLG39lI8mnHBf-HoEa1OKx1MN5vtmwYX7lD02-jHZa6wp.jpg)

![SIRAMICO COATINGS Liquid Rubber Roof Coating, Black, 500ml — 3](https://bargainpostbox.co.uk/i/3xJFWmd67ig42CAHQk-6czTTSfbYX33Y2d0TWaNfw2v9gswTDbC10YW7vTjHtfN0FVOBhMVwO11bSbFSF3bP-lO3zjsvcz_K4hqXIwyGfKQfZkxFVSi3.jpg)

![SIRAMICO COATINGS Liquid Rubber Roof Coating, Black, 500ml — 4](https://bargainpostbox.co.uk/i/_f0DHPgc_pH5D_subvrjiD8xMuMcx_KwkvQ30-_A4AEYukOeRku82rg9o0DWjG4RCgvGNgw919JUIL_VDoJNQx9zqPMw3vuU-ofZMRQMCPpWP9rFl3B9.jpg)

![SIRAMICO COATINGS Liquid Rubber Roof Coating, Black, 500ml — 5](https://bargainpostbox.co.uk/i/c40t2__tw_xpgOVG21UocxjbXyCO1MZbQvhRtOSn4_yruo-1wi832LB1GghqJfAbt59Et6UxRlxDmx1NS0PGnDdBFr8c8EU_mMA0iyMXQpER1J-AwzuM.jpg)

![SIRAMICO COATINGS Liquid Rubber Roof Coating, Black, 500ml — 6](https://bargainpostbox.co.uk/i/gGLSbegxdHn2jPReKGQBIUI3lSIpIVh0xibeNdNLBcoi2OChKpYhfpRPMbuoEOkq-fkQT32YuIvIgVw0QvkTtW0jmC92-IE36P2l_bSG2fgQiAe2a8Q2.jpg)

![SIRAMICO COATINGS Liquid Rubber Roof Coating, Black, 500ml — 7](https://bargainpostbox.co.uk/i/iMD5xwrc63LSDmp34rX5SYeM6dWEOlV8yGQivF6cpoRTGDt9xZ85Zu3ClzmLdv17X-SmxJ-iPwDvFI87H8-VHkaFbQAzx9IO74ooMpVUeXsPoxHjX-UB.jpg)