Soudal - Butyrub Mastic 300ml

Ignite Precision with Confidence

The SOUDAL Butyrub Mastic 300 ml from Industrial Shed is the premium polybutene-based sealant for trade professionals on the Mornington Peninsula who demand durable, paintable sealing solutions for low‑movement joints.

Key Features

• One‑component polybutene mastic – no mixing required.
• Forms an elastic, water‑tight skin—self‑healing beneath the surface.
• Paintable after 24 hours with most elastic coatings.
• Excellent adhesion to masonry, metal, wood, glass, plastics.
• Resistant to UV, weather, and a broad range of chemicals.
• Easy to apply using standard caulking guns.

Technical Specifications

• Basis: Polybutene
• Consistency: Stable paste
• Skin formation: ≈ 24 hours
• Curing: Oxidative (semi‑setting, remains flexible)
• Temperature range: – 20 °C to +80 °C
• Application temp: +5 °C to +30 °C
• Density: ≈ 1.70 g/ml
• Movement accommodation: up to 5%

Typical Applications

• Sealing low‑movement joints in masonry, door and window frames, and sills.
• Mounting single glass panes in wooden, concrete, or steel frames (e.g. greenhouses).
• Sealing joints in roof structures, gutters, vehicle bodies, containers, and caravans.
• Repairing roof flashings, tile joints, and other static seal needs.

Why Choose This Product

• Reliability: Trusted Soudal quality ensures consistent performance.
• Performance: UV‑ and weather‑proof sealant that remains flexible over time.
• Versatility: Adhesion to multiple substrates and paintability expand its usability.
• B2B‑ready: Ideal for professional builders, installers, and maintenance trades.

Packaging Information

Available in a single 300 ml cartridge. Supplied 1 unit per box for easy inventory control.

Important Notes & Limitations

• Not suitable for continuous water immersion or sealing of safety/insulating glass units.
• Not for use on natural stones (e.g. marble, granite)—choose Silirub MA for these substrates.
• Paint compatibility test recommended due to varying paint elasticity.
• Clean uncured mastic with white spirit or Soudal Surface Cleaner; cured material must be removed mechanically.

Australian Trade Testimonials:

“Outstanding adhesion on masonry and timber—no issues after 12 months exposed to sun and rain.” – Local builder, Vic

“Does exactly what it promises—holds tight, stays flexible, and looks neat after painting.” – Glazing contractor, Melbourne

⚡ Limited stock available—order now from Industrial Shed!