Model: MS-30RV · Direct Factory Supply

MS-30RV Self-Leveling RV Roof Lap Sealant

Premium MS Polymer hybrid lap sealant engineered for motorhomes, trailers, and RV roof fixtures. UV stable, non-staining, HAPS-free formulation that self-levels over screw heads and roof seams without sagging.

HAPS-Free
Zero Harmful Air Pollutants

UV Stable
Non-Yellowing

Self-Leveling
Covers Screw Heads

TPO & EPDM
Multi-Substrate Adhesion

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MS-30RV Technical Specifications

Verified parameters under ASTM & ISO standard laboratory testing conditions.

Property	Standard / Method	Verified Value	Engineering Function
Chemical Base	MS Polymer	Silyl-Modified Polyether	Zero solvents, zero isocyanates, eco-friendly
Hardness (Shore A)	ASTM D2240	30 ± 5 A	Tough rubbery seal against road vibration
Skin Time	23℃, 50% RH	20 – 30 minutes	Fast rain resistance on camper roofs
Tensile Strength	ASTM D412	≥ 1.8 MPa	Tenacious peel adhesion to FRP and aluminum
Temperature Range	Cycling	-40℃ to +100℃	Desert sun to sub-zero winter storage
Substrates	Lab Adhesion	FRP, TPO, EPDM, Aluminum	Universal campervan roof compatibility

📋 Official TDS, MSDS and third-party laboratory reports available on request:

Download TDS (PDF)
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Top 9 Leak Spots on RV Roofs (Inspection Protocol)

1. Front Cap Seam · 2. Rear Cap Seam · 3. Skylight Edges · 4. AC Unit Mounting · 5. Plumbing Vent Pipes · 6. Solar Panel Brackets · 7. TV Antenna Mount · 8. Luggage Rack Stanchions · 9. Awning Rail Seams.
MS-30RV is specifically balanced to cover screw heads in one pass without thinning.

RV, Marine & Eco-Building

Where MS-30RV Hybrid Polymer Outperforms

Solvent-free, isocyanate-free silyl-modified polymer combining silicone weather resistance with polyurethane adhesive toughness. Completely paintable and non-bubbling.

RV Roof Air Conditioner and Skylight Lap Joint Caulking

RV Roof Penetrations

Skylights, AC Units & Vent Lap Joints

Elastic lap sealing around rooftop air conditioning shrouds, solar panel mounting brackets, fan vents, and skylights exposed to violent vehicle road vibrations.

Never cracks or chalks under intense 24/7 solar UV exposure
Replaces messy butyl tape with permanent elastomeric waterproof barrier

Motorhome Roof Waterproof Sealing Completed View

Clean Aesthetics

Non-Staining Motorhome Perimeter

Zero plasticizer migration. Prevents dark streak dirt pickup and oily silicone bleed contamination across fiberglass gelcoats, aluminum, and painted side panels.

Smooth surface finish sheds road grime, rain, and tree sap
Compatible with TPO, EPDM, PVC, and fiberglass FRP roofs

RV Fiberglass FRP Roof Panel Adhesion Tensile Test

Substrate Adhesion

Fiberglass FRP & Dissimilar Metals

Primerless bonding between dissimilar substrates with radically different thermal expansion coefficients, such as aluminum corner extrusions to FRP sandwich walls.

Tensile shear strength: ≥ 2.2 MPa on bare aluminum
100% cohesive substrate tear failure without delamination

Non-Bubbling MS Polymer on Damp Concrete Comparison Test

Damp Surface Testing

Non-Bubbling on Damp Substrates

Unlike polyurethane that reacts with water moisture to emit CO2 bubbles, MS polymer cures via methoxysilane hydrolysis with zero gas formation on wet surfaces.

Can be applied on damp green concrete and moist metal panels
Paintable immediately after skin formation with water-based coatings

OEM RV & Trailer Assembly Line Inquiries

We supply major camper and commercial trailer assembly factories with robotic extrusion pails and customized modulus MS formulations.

Export Logistics & Packaging

Packaging Specifications & Container Loading

Cartridges with air-tight aluminum foil bottom seals and foil sausages packaged for long-haul export and retail display.

MS-30RV RV Roof Lap Sealant Cartridge Hero Shot

290ml Cartridge & 600ml Sausage

Available in 290 ml HDPE cartridges with screw-on nozzles (24 pcs/ctn) and 600 ml composite foil sausages (20 pcs/ctn) for high-output applications.

CHEMPU MS Polymer Hybrid Sealant Cartridge Display

Retail Shelf & Export Master Packaging

Heavy 5-ply corrugated export cartons with barcoded retail shelf display boxes and fumigated export wooden pallets meeting ISPM-15 standard.

Container Loading Capacity (20GP)

Format	Carton Pack	20GP Container
290 ml Cartridge	24 pcs / ctn	1,800 ctns (43,200 pcs)
600 ml Foil Sausage	20 pcs / ctn	1,200 ctns (24,000 pcs)
200 L Bulk Drum	Industrial bulk	80 drums (20,000 kg)

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🏷️ Private Label & OEM Formulation

Complete private label solutions for RV parts distributors, automotive aftermarket brands, and construction suppliers:

Color Range: Pure White, Off-White, Grey, Black, Crystal Clear.
Eco Compliance: Zero isocyanates, ultra-low VOC < 20 g/L (LEED v4 compliant).
Packaging: Custom high-resolution litho cartridge printing with customer brand.

Shelf Life & Storage: 12 months stored in cool, dry conditions between +5°C and +25°C.