PERMABOND MS359

Main features

No-Mix Moisture Cure
10-20 Minute Skin Formation
High-Elongation Exterior Bonding

Product Description

Permabond MS359 Grey is a single-part, moisture-curing MS polymer adhesive for exterior bonding and sealing. Its grey, high-viscosity formulation requires no mixing and develops a skin in 10-20 minutes, with an approximate cure rate of 5 mm per 24 hours. The cured material combines 45-60 Shore A hardness with 150-350% elongation for an elastomeric bond on supported metals, plastics, composites, PVC, polycarbonate, polystyrene, and wood. The adhesive is primer-free on supported substrates and can be painted after cure. Applications include exterior frames, fascias, and related construction assemblies.

Key features

No-Mix Moisture Cure: Single-part MS polymer cures by humidity without component mixing.
Controlled Skin Formation: Develops a skin in 10-20 minutes before continued cure.
Flexible Cured Bond: Provides 150-350% elongation and 45-60 Shore A hardness.

Applications

Applications include exterior construction bonding and sealing for frames and fascias, plus supported assemblies using metals, plastics, composites, PVC, polycarbonate, polystyrene, or wood.

Technical Specifications

No specifications available.

Additional Information

Technical properties

As supplied / before processing

Property	Value	Unit	Method / condition
Chemical composition	MS polymer		As supplied
Appearance	Grey		As supplied
Viscosity	1,500,000-2,500,000	mPa s	5 rpm at 25 deg C
Low-shear viscosity	4,500,000-9,000,000	mPa s	1 rpm at 25 deg C
Specific gravity	1.5		As supplied
Curing mechanism	Humidity		Room-temperature moisture cure
Skin-over time	10-20	minutes	Typical curing property
Cure rate	Approx. 5	mm/24 hours	Typical curing property