Sandtex Smooth Masonary Paint 10 Litre - Slate Grey | 5070385

• Microseal® technology - waterproof yet breathable coating
• 15 years durability as stated by manufacturer
• Rainproof in just 1 hour after application
• Covers up to 16 m² per litre - 160 m² per 10L tin
• Recoatable within 3-4 hours
• Resists mould, algae, flaking, and peeling
• Very low VOC - max. 1 g/l, 99% solvent free
• Suitable for render, pebbledash, brick, concrete, and more
• Slate Grey - mid to dark grey with a hint of blue
• Packaging made from 100% post-consumer waste plastic
• Warranty: 1 Year

Sandtex Smooth Masonry Paint - Weatherproof Slate Grey for Exterior Walls

Long-lasting protection with Microseal technology:

Sandtex Smooth Masonry Paint uses proprietary Microseal® technology to create a coating that is both waterproof and breathable. It seals exterior walls against water ingress while allowing moisture to escape from within, helping to prevent flaking, peeling, and cracking over time. This balance of water resistance and breathability is what makes Microseal® a trusted formula on Irish and UK exterior walls.

Excellent coverage and a quick-drying formula:

Each litre covers up to 16 m², giving a full 10-litre tin a potential coverage of 160 m² - enough to coat a substantial exterior wall area in one purchase. The formula is rainproof in as little as 1 hour and recoatable within 3 to 4 hours, so work can progress without long delays between coats.

Slate Grey - a mid to dark grey with a hint of blue:

Slate Grey sits in a mid to dark range on the grey spectrum, with a subtle blue undertone that gives exterior walls a composed, contemporary finish. The smooth, matt result works well alongside stone, render, brick, and painted timber details. It is one of 12 colours available in the 10-litre size.

Sustainable packaging:

As part of the Crown Paints family, Sandtex uses paint containers made from 100% post-consumer waste plastic, making this a more environmentally considered choice for exterior painting projects.

Shop the full Painting & Decorating range from Heavins.ie, serving customers across Ireland.

Key Features

Microseal® Technology - microporous coating that is waterproof yet breathable, preventing water ingress while allowing moisture to escape.
15-Year Durability - long-term protection against weathering, as stated by the manufacturer Crown Paints.
Rainproof in 1 Hour - quick-drying formula allows work to continue even when Irish weather is changeable.
Coverage up to 16 m² per Litre - full 10-litre tin covers up to 160 m² depending on surface texture and porosity.
Recoatable in 3-4 Hours - reduces waiting time between coats on large exterior areas.
Mould and Algae Resistance - formula actively protects the coated surface against mould and algae growth over an extended period.
Covers Fine Cracks - smooth formulation fills and covers fine surface cracks on exterior masonry.
Very Low VOC - contains a maximum of 1 g/l VOC, well within the EU limit of 40 g/l for this product category.
Water-Based and 99% Solvent Free - easy brush and tool clean-up with water.
100% Post-Consumer Waste Plastic Packaging - Sandtex is the first paint manufacturer in the UK to use this sustainable container material.

Specifications

• Brand: Sandtex (Crown Paints)
• Colour: Slate Grey
• Finish: Smooth Matt
• Volume: 10 Litres
• Coverage: Up to 16 m² per litre (up to 160 m² per tin)
• Application: Brush, roller, or spray
• Touch-dry time: 3-5 hours (varies by conditions)
• Recoat time: 3-4 hours
• Rainproof: 1 hour
• Minimum working temperature: 8°C
• VOC content: Max. 1 g/l (EU limit for this category: 40 g/l)
• Solvent content: 99% solvent free
• Base: Water-based
• Location: Exterior use only
• Suitable surfaces: Rendering, roughcast, pebbledash, concrete, building blocks, facing bricks, masonry painted surfaces
• Technology: Microseal®
• Durability: 15 years (manufacturer stated)
• Pack size: 1 tin
• EAN: 5010131504952
• Warranty: 1 Year

What's Included in the Box

• 1 x 10-litre tin of Sandtex Smooth Masonry Paint in Slate Grey
• No brushes, rollers, or accessories included

We are pleased to offer FREE delivery on orders over €499.00 to anywhere in the Republic of Ireland and Northern Ireland, and our Click & Collect service is FREE on all orders.

All items are shipped from the Athlone Warehouse in Co. Westmeath, Ireland so no import duties apply to the island of Ireland.

Delivery Costs to Republic of Ireland are €6.99 for orders Under €499.00

Same Day Dispatch €9.99
Orders placed before 12pm are dispatched the same working day, helping your items reach you sooner. Excludes bulky items.

Large Bulky Items
Please be aware that large, bulky items (large appliances, white goods, etc.) have a delivery charge of €39.99 for bulky items or €59.99 for extra bulky items to ROI

- We are now delivering to Northern Ireland with all delivery costs equal to the Republic of Ireland.

View our full Delivery & Collection information

Due to our valued customer feedback, we have updated and improved our Returns Policy.

We now offer an exhange or refund on goods purchased online, and returned 14 days after purchase. 

View our Full Returns Policy