CRC MS Sealant Grey 400g High Performance Neutral Cure Waterproof One Component For Construction Pros

CRC ADOS MS Sealant Grey 400g (8364) is a high‑performance, one‑component adhesive sealant designed around MS polymers for durable bonding, sealing, and waterproofing in demanding building, construction, and engineering applications. Its neutral cure chemistry means it eliminates the acids found in other sealants, reducing the risk of staining or corrosion while delivering reliable, long‑lasting performance in challenging environments.

Why this sealant stands out

• Primerless adhesion to a wide range of substrates commonly used in construction, including concrete, brick, PVC, timber, glass, aluminium, steel, copper, brass, zinc, ceramic, masonry, and more. Save time on site with fewer surface pretreatments.
• One‑component, neutral‑cure formulation that avoids acids and silicones, reducing odor and permitting easy painting over cured material with most solvent and water‑based paints.
• Extreme flexibility and durability designed for dilation joints – maintains high elasticity, tear resistance, and bond strength across temperature changes and weather exposure.
• Non‑slump, low shrinkage characteristics allow thick, uniform applications without sagging or cracking, even in vertical joints.
• Non‑staining and UV‑resistant so the cured sealant stays clean and true in both interior and exterior conditions, including exposure to sunlight.
• Low VOC and solvent‑free formulation with no isocyanates, making it safer for on‑site work and easier cleanup with a damp cloth.
• Paintable after cure—you can finish with most solvent and water‑based paints or varnishes without compromising adhesion or flexibility.
• Fast skin formation helps resist dust and dirt pickup, while curing quickly at ambient temperatures supports faster project timelines.

Ideal use cases

• Sealing and bonding in dilation joints in concrete, brick, masonry, and plaster systems.
• Waterproofing and joints around windows, doors, façades, and façades penetrations where silicone is not suitable.
• Exterior and interior applications where long‑term elasticity, weather resistance, and paintability are required.
• Connections between dissimilar materials (PVC, metal, timber, ceramic) that demand reliable adhesion without primer.

Practical guidelines for use

• Apply directly from the cartridge with minimal surface preparation for primerless adhesion on compatible substrates.
• Excursions in ductile joints and thick bead applications are supported thanks to low shrinkage and non‑bulging surface when cured.
• Tool and finish within the recommended working window; surface will skin over quickly to resist dust and dirt.
• For clean‑up, wipe uncured material with a damp cloth; cured material can be painted as needed.

BRANZ Appraisal and availability

The ADOS MS Sealants family is BRANZ Appraised for White (8361), Black (8363) and Grey (8364) variants, with Grey being the 8364 option. This appraisal supports use in professional building projects where BRANZ confirmation matters, giving builders and remodelers confidence in performance across a range of exposure conditions. Note: Clear (8362) is not included in the BRANZ appraisal.

Whether you’re sealing joints in high‑traffic commercial builds, waterproofing exterior expansions, or bonding components where silicone isn’t suitable, CRC ADOS MS Sealant Grey 400g delivers a robust, paintable, long‑lasting seal with primerless adhesion and minimal maintenance. It’s the practical, project‑tested choice for modern construction needs.