Soudal Multibond SMX35 Seal & Stretch 600ml

Soudal Multibond SMX35 Seal & Stretch is a hybrid joint sealant based on SMX polymer, supplied in a 600ml sausage in concrete grey. It is the high-movement option in the Multibond range, accommodating joint movement of +/-20% while curing to a permanently elastic, waterproof seal. The neutral, moisture-curing formula bonds to a wide range of substrates, resists UV, and can be sanded and painted once cured, which makes it a reliable choice for exterior joint sealing.

Key Features

• Hybrid SMX polymer base, neutral and elastic, one component
• Accommodates joint movement of +/-20%
• Permanently elastic after curing with excellent UV resistance
• Can be sanded and painted with most types of paint
• Bonds to a wide range of substrates, including damp and wet surfaces
• Supplied in a 600ml sausage for a caulking gun

Specifications

• Base: SMX hybrid polymer, neutral, moisture curing
• Joint movement: +/-20%
• Hardness: Shore A 40 +/- 5
• Skin formation: approximately 10 minutes
• Temperature resistance: -40C to +90C
• Colour: concrete grey
• Pack size: 600ml sausage

Applications

• Expansion and connection joints in construction
• Masonry and precast concrete joints
• Lap joints in roofing, guttering and cladding
• Window and door perimeters

What You Need To Complete The Job

SMX35 is applied with a caulking gun, so pair the sausage with an Ingco industrial caulking gun or the Uni-Pro no-drip caulking gun. For a lower-movement sealant in a 290ml cartridge use Soudal Multibond SMX25 Flex & Seal. Browse the full Sealants range for the complete system.

Frequently Asked Questions

What does the +/-20% movement mean?

It means the cured sealant can stretch and compress with joint movement of up to 20% either way without losing its seal. That is what makes SMX35 the right choice for expansion joints and highly dynamic joints.

How is SMX35 different from SMX25?

SMX35 Seal & Stretch is the higher-movement option at +/-20%, while SMX25 Flex & Seal accommodates +/-25% movement with a higher viscosity. Both are SMX hybrid polymer sealants; SMX35 is supplied in the 600ml sausage size here.

Can it be painted?

Yes. Once cured, SMX35 can be sanded and painted with most types of paint, which lets you finish the joint to match the surrounding surface.

What surfaces does it bond to?

The SMX hybrid formula bonds to a wide range of building substrates, including masonry, concrete, metals and plastics, and it can be applied to damp and wet surfaces.

Can I order for delivery or pickup?

Yes. You can order online and choose Australia-wide delivery or pickup from our Truganina trade counter in Melbourne’s west. Delivery windows depend on your postcode, and we send a confirmation once your order is ready. For any questions call (03) 93941400 or email orders@singhroofingsupplies.com.au.