S300 – Roof Coating System
S300 – Roof Coating System
4L / Gull Grey
$110.00
Sale price
$110.00
Regular price
incl. GST
* Product image is for marketing purposes only and may not represent the actual product or colour.
Roof Coating System
Protect, Restore & Extend the Life of Your Roof
The S300 is a premium, high-build roof coating engineered to restore aged roofing surfaces and deliver long-lasting waterproof protection. Formulated specifically for New Zealand's demanding climate — from punishing UV summers to cold, wet winters — the S300 bonds to your roof and stays flexible for years, not months.
Suitable for
Concrete tile, metal & decramastic roofs
Available sizes
4L · 10L · 15L
Made in
New Zealand
Key features
Excellent adhesion
Bonds firmly to a wide range of roofing surfaces — no peeling or delamination.
UV resistant
Won't fade, chalk or break down under New Zealand's high UV conditions.
Flexible & durable
Moves with your roof as it expands and contracts — stays crack-free season after season.
NZ-formulated
Designed and tested for New Zealand's unique conditions — not a generic import.
Why choose the S300?
Whether you're restoring an ageing iron roof, refreshing weathered concrete tiles, or protecting a decramastic surface — the S300 delivers a high-quality, uniform finish that looks great and performs even better. Easy to apply by brush, roller or spray, and available in a full range of colours to suit any home.
Available Colours
15 colours shown · Gull Grey, Grey Friars, Ironsand, Flaxpod, New Denim Blue and Ebony available to order online
Ebony
Flaxpod
Ironsand
Karaka
Pioneer Red
New Denim Blue
Permanent Green
Mist Green
Lichen
Scoria
Titania
Gull Grey
Medium Grey
Gull Grey
Grey Friars
Colours are shown as a guide only and can vary slightly from the finished coating. They are based on the COLORSTEEL® range; our colours are individually formulated and will differ from the original COLORSTEEL® colours. COLORSTEEL® is a registered trademark of New Zealand Steel — Speciality Coatings is not affiliated with or endorsed by New Zealand Steel.
Can't find the colour you want?
Need a different colour? We can mix almost any colour on request, at extra cost. Contact info@specialitycoatings.co.nz.
How much do I need?
One 15L bucket covers about 110 m² per coat. S300 needs two coats, so allow 15L for every 55 m² of roof.
Example: a 110 m² roof needs 2 × 15L (30L).
How to apply
- Clean the roof with Muckoff (fast mix 1:5).
- Treat any surface rust with Rust Converter.
- Prime bare zincalume with Super Etch Primer and overcoat within 24 hours.
- Apply two coats of S300. It is touch dry in about 2 hours and can be recoated after 4 hours. Put the second coat on within 3 days of the first, or clean the roof again before recoating.
Read the full step-by-step guide: how to paint a corrugated iron roof →
You'll also need
- Muckoff Organic Moss & Mould Killer – to clean the roof first
- Rust Converter – for surface rust on steel roofs
- Super Etch Primer – for bare zincalume or galvanised steel