Solutions — Caravans & Motorhomes

Seal & Protect Your Caravan

Leaking roofs, failing seams, and weathered panels are the most common causes of costly water damage in caravans and motorhomes. Explore the map below to find the right coating solution for each part of your van.

Tap a point on the caravan to explore
Roof & Seams Body & Panels Window Seals Moss & Mould
Zone
Product Name
Product description goes here.
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Why It Matters

Caravan Waterproofing Done Right

A caravan lives its whole life exposed to the elements — baking UV in summer, driving rain in winter, and constant flex and vibration on the road. Over time this takes a toll on the one thing that keeps the interior dry: the roof and body seals. Once water finds its way in, it spreads through the framing and lining, causing rot, delamination, and expensive structural repairs that often aren't discovered until it's too late.

Our range of flexible, UV-stable coatings is built to stop that from happening. Formulated and manufactured in New Zealand for our harsh conditions, these coatings move with your caravan — bridging cracks, sealing seams, and forming a watertight barrier that lasts. Whether you're restoring an older van or protecting a new investment, the right coating system will keep it dry, roadworthy, and holding its value for years to come.

Use the interactive map above to identify the products suited to each part of your caravan, or browse the full range below. Not sure where to start? Our technical team is happy to help you plan the right prep-to-topcoat system for your project.

The Full Range

Products for Caravans

Every product suited to caravan and motorhome protection — from surface prep to final topcoat.

Self Adhesive Tape
Self Adhesive Tape
Waterproof detailing tape for seams, penetrations and quick repairs. Strong adhesive, flexible enough to move with the structure, and fast...
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GeoFabric Tape
GeoFabric Tape
Flexible reinforcement fabric for waterproofing joints, cracks and movement areas. Bridges cracks, absorbs substrate movement, and integrates straight into your...
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Muckoff Organic Moss & Mould Killer
Muckoff Organic Moss & Mould Killer
Organic treatment that strips moss, mould, algae and dirt from roofs and exterior surfaces. Biodegradable, safe on most substrates, and...
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S300 – Roof Coating System
S300 – Roof Coating System
Premium high-build roof coating that restores aged roofs and locks in long-term waterproof protection. Bonds firmly, resists UV fade, and...
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S400 – High-Build Waterproof Coating
S400 – High-Build Waterproof Coating
High-build flexible waterproof coating with up to 600% elongation and serious weather resistance. Bridges cracks, moves with the substrate, and...
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Rust Converter
Rust Converter
Stabilises and converts surface rust before you coat, stopping corrosion spreading underneath. Improves topcoat adhesion and brushes on easily. The...
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Super Etch Primer
Super Etch Primer
High-performance adhesion primer for the surfaces standard primers can't hold. Bonds to galvanised steel, Zincalume, stainless and weathered coatings —...
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10m² Waterproofing DIY Kit
10m² Waterproofing DIY Kit
Everything you need to seal and protect small areas, in one box. Muckoff cleaner, 4L of S400 coating, self-adhesive tape,...
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20m² Waterproofing DIY Kit
20m² Waterproofing DIY Kit
Double the coating for medium-sized jobs. Two 4L buckets of S400, self-adhesive tape, brushes and roller sleeves — covers up...
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The System

How to Apply the System

A complete caravan coating job follows four stages. Skipping any one of them is the most common cause of premature failure.

Clean
Treat and remove moss, mould and algae with MuckOff, then wash back to a clean, sound, contaminant-free surface.
Reinforce Seams
Bed GeoFabric or Self-Adhesive Tape into a base coat of S400 over seams, joins and penetrations.
Encapsulate
Build up further coats of S400 so the tape is fully encapsulated and no longer visible.
Coat
Finish with multiple coats of S400 across the roof and body for a durable, flexible, watertight membrane.
Common Questions

Caravan Coating FAQs

Yes — S400 is a DIY-friendly coating, and our Waterproofing DIY Kits include everything you need for a caravan roof: coating, reinforcement tape, MuckOff cleaner, and application tools. Start by cleaning the surface back to sound, contaminant-free material with MuckOff. Reinforce joins, seams, and penetrations with GeoFabric or Self-Adhesive Tape bedded into a base coat of S400, then build up further coats so the tape is fully encapsulated. Finish with multiple coats across the roof for a continuous, flexible, watertight membrane. Always follow the product's Technical Data Sheet, and if you're unsure about your particular van, get in touch and we'll talk you through it.
Most caravan leaks start at seams, joins, and penetrations where the original sealant has broken down under UV exposure and the constant flexing of travel. Reinforcing these points with tape encapsulated in S400 targets exactly where water tends to get in.
S400 cures to a tough, flexible, UV-stable membrane built to move with your caravan rather than crack as it flexes on the road. How long it lasts depends on how well the surface was prepared, how many coats were applied, and the conditions the van is exposed to. Getting the prep right, reinforcing your seams, and building up the coats gives you the most durable result — and an occasional inspection of seams and high-wear areas, with a re-coat where needed, keeps the barrier working for the long haul. Because DIY application isn't something we can verify, DIY-applied products carry your statutory rights under the Consumer Guarantees Act 1993 but not a performance warranty — see our warranty page for details.
S400 comes in three standard colours — Black, Gull Grey, and White — and can be colour matched to almost any standard roof colour, with a minimum order applying for custom colours. Our colours are based on the COLORSTEEL® range but are individually formulated and may vary from the standard. Get in touch to discuss a custom colour for your van. COLORSTEEL® is a registered trademark of New Zealand Steel — Speciality Coatings is not affiliated with or endorsed by New Zealand Steel.
Need a hand?

Not sure where to start?

Tell us about your caravan and our technical team will recommend the right system for the job.

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