CRC MS Sealant White 400g High-Performance One Component Neutral Cure for Builders and Construction Pros

CRC ADOS MS Sealant White 400g (8361) is a high‑performance, one‑component neutral‑curing adhesive sealant based on advanced MS polymers. Designed for demanding building, construction and engineering projects, it delivers reliable, long‑lasting performance where silicone proves unsuitable.

What makes this MS sealant stand out is its primerless adhesion to a wide range of substrates commonly encountered on site. White (8361) is BRANZ Appraised, giving you confidence for interior and exterior installations, while Black (8363) and Grey (8364) are also appraised. (Note: Clear 8362 is not included in the BRANZ appraisal.)

Key advantages that drive real-world results

• Superior adhesion to many materials: PVC, concrete, brick, timber, glass, aluminium, iron, stainless steel, copper, zinc, ceramic and more, with excellent primerless bonding on typical construction substrates.
• Waterproof, flexible seal: Bonds, seals and waterproofs joints in dilation gaps, expansion joints and high‑movement interfaces, maintaining elasticity over years of use.
• Paintable finish: Once cured, can be painted with most solvent‑ and water‑based paints and varnishes, integrating seamlessly into finished surfaces.
• Neutral cure, solvent‑free: No acids, solvents, isocyanates or silicones—safer for workers and compatible with modern low‑VOC building practices.
• Exceptional durability: UV resistant and designed to resist harsh weather and aging, with bond strength, tear resistance and elasticity retained over time.
• Thick‑layer capability without defects: Non‑slump and low shrinkage (<1%), enabling tight joints to be filled in thick applications without cracking, bubbling or waviness.
• Low odour and easy handling: Low VOC, low odour formulation with smooth extrusion from cartridges even at low temperatures, reducing on‑site downtime.
• Clean and practical: Non‑staining, quick skinning over to resist dirt pickup, and simple cleanup with a damp cloth while uncured.

Practical use cases and who benefits most

This sealer is ideal for professionals tackling both new builds and refurbishments. Use CRC ADOS MS Sealant White 400g to:

• Seal dilation joints and panel gaps in façades, balconies and bridges where movement is expected.
• Bond and seal around windows, doors, skirtings and terminations where silicone isn’t suitable or where primerless adhesion is advantageous.
• Waterproof and protect joints in concrete, brick, plaster, ceramic, metal cladding and other common substrates.
• Finish interior projects that require paint compatibility and a durable, long‑lasting seal with minimal maintenance.

Usage insights and tips for best results

• Prepare joints to the manufacturer’s guidelines and apply in vertical or horizontal joints with confidence thanks to its non‑slump behavior.
• Apply in layers to build up thick sections without risk of shrinkage or bubble formation; allow appropriate cure times between passes if needed.
• After application, wipe away uncured residue with a damp cloth for a clean, ready‑to‑paint surface.
• Surface compatibility is broad, but always test a small area if applying over unusual substrates or when painting over cured sealant for the first time.
• Store cartridges upright in a cool, dry place to maintain extrusion performance.

Specifications at a glance

• Product: CRC ADOS MS Sealant White 400g (8361)
• Formulation: One‑component MS polymer, neutral cure, solvent‑ and isocyanate‑free, silicone‑free
• Finish: Paintable after curing
• Applications: Interior and exterior joints, bonding and sealing in construction and engineering projects
• Durability: Maintains elasticity and tear resistance over years; UV and weather resistant
• Shrinkage: Very low (<1%), suitable for thick applications
• Non‑staining: Primerless and surface friendly

Choose CRC ADOS MS Sealant White 400g (8361) for a reliable, versatile, paintable sealant that simplifies construction workflows, reduces downtime and delivers durable performance in even challenging environments. It’s the practical, modern solution for sealing, bonding and waterproofing in today’s building projects.