Exterior Wall Paint, Lime Silicate, Colours - Heritage Graphenstone GCS Exterior
Universal exterior lime based natural paint for lime render, brick, old paints, brick, mortar, concrete and many others. Ideal for walls with multiple surface types or tricky substrates.
Graphenstone GCS Exterior is perfect for restoration works, especially on older or historic buildings that need to be able to breathe. Made from a perfect mix of lime, silicate and other natural mineral bases and offers a gorgeous matt finish.
Highly breathable (<0.08 SD value), natural and very low VOC (<1g/l) with amazing coverage (12-18m2 per litre), and best in class really!
This is an excellent heritage paint, endorsed by English Heritage themselves- who have their own selection of 24 English Heritage Colours in this very paint.
Colours: Available in the majority of the gorgeous 120 paint colours from Graphenstone. Order a Graphenstone Colour Chart here.
Samples & Testers: All new colours available to sample as A5 Peel & Stick Colour Swatches, which can be ordered in the standard range of Grafclean Emulsion. We hold samples in white GCS exterior only so you can check texture, but for all colour samples just order in the Grafclean Emulsion - the colours are the same. (Interior version also available)
LOW STOCK - Gradual Restock from w/c 16th Feb. Please check live stock levels below in the meantime.
Available in a number of colours from the 120 colour range colour chart.
Especially suited for restoration of heritage and listed buildings, due to the compatibility and high breathability of this natural paint.
Goes well with: For matching paint with wood and trim, I would suggest the Graphenstone Grafclean Eggshell for all wood and trim. Same range of gorgeous colours
Specifications
Perfect for all Interior walls.
High covering power, and tough and long lasting. High adherence to substrates
Gorgeous Ultra Matt finish (3% sheen)
VOC: Very Low VOC, < 1 g/l
VOC Emission: Class A+
Breathable: Very Breathable, SD value: Class 1
Moisture: Certified for moisture control
Washability: Excellent, Class 1
Flexibility - Excellent, a non cracking formula
Fire performance: Class 0 (British Standard)
Cradle to Cradle Certified Silver
GreenRate Certified: Level A
Drying: GCS interior dries in 2-4 hours between coats, and 24 hours until fully dried. Around 30 days until fully cured.
Coverage: Around 12-18m2 per Litre. We recommend diluting 10-15% with water before application for better coverage and easier application. Requires 2 coats.
If painting over mineral substrates, they must be at least 28 days old before application. The substrate must also be resistant to high alkalinity. If in doubt apply to a test area first, and do not apply to surfaces in constant contact with water.
Previously painted walls:
Over old glossy paint, sand surface to create a key for good adhesion.
Over old paint (standard normal paint), just remove unstable or flaking paint, then either prime with 10% diluted GCS interior to use as the primer, or use the Ambient Primer to homogenise the surface fro a uniform top colour. This does not change the breathability of the GCS interior.
How to prep GCS Interior prior to using
Open pot and give it a good stir. Ideally dilute with 10%-15% pf the product weight, which will be around 150ml to 200ml of water per litre of product). Avoid shaking to avoid bubbles.
Apply two to three even coat, with a roller, brush or airless spray gun.
Primer. If primer is required, use the Graphenstone L42 Ambient Primer.
Data Sheets
- Main 'How to use' TDS - read this!
- Graphenstone Heritage Leaflet
- MSDS GCS Interior
- MSDS GCS Interior M Base
- MSDS GCS Interior P Base
- One Page Summary
What does Pastel, Medium or Transparent mean on the side of the pot?
This is just the base paint used to match the pigments used to create the colour chosen. We open the base pot and tint directly into it, mix and reseal and send to you.
