How do I apply T-Rex X-Treme for panel bonding?

Apply bead strips every 15 cm on one substrate with high thrust-ratio caulking gun. Bond and tamp with a rubber hammer; support if necessary.

Which substrates suit it?

Excellent adhesion on stainless steel, galvanised steel, aluminium alloys, brass, brick, concrete, treated timber, PVC and many plastics. Recommend test on PMMA and polycarbonate.

How much per cartridge?

Single 290 mL cartridge per bonding job — apply as beads every 15 cm. Coverage depends on bead geometry.

Skin time and full load time?

Skin formation ≈ 4 min at 23°C/50% RH. Cure speed ≈ 2 mm/24h. Bond can be fully loaded after 24-48 hours.

What is the shelf life?

15 months in original unopened cartridge in cool dry storage at 5-25°C.

Why is initial grab so high?

The SMX hybrid polymer formulation produces minimum 400 kg/m² tack — supports heavy panels without temporary mechanical support during cure.

Soudal T-Rex Power X-Treme SMX polymer adhesive with 400kg initial tack for high-strength bonding of construction materials, suitable for interior and exterior applications.

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Soudal T-Rex Xtreme

Name: Soudal T-Rex Xtreme
Brand: Soudal
SKU: SSOS258
Price: 19.95 AUD
Availability: InStock

$19.95

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Introducing Soudal T-REX XTREME, the ultimate solution for extreme bonding needs. T-Rex X-treme is a premium, neutral, elastic adhesive sealant designed to provide exceptional tack for immediate bonding of heavy materials without requiring additional support. Powered by Soudal's innovative SMX Polymer technology, it boasts an extraordinary initial tack of at least 400 kg/m².

Extreme high initial tack of min. 400 kg/m2

Immediate bonding of extremely heavy materials without additional support

High shear strength after full cure with no primer, and good adhesion even on damp substrates

Quantity: 1

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Pickup available at The Waterproofing Shop

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Soudal T-Rex Xtreme

The Waterproofing Shop

Pickup available, usually ready in 24 hours

22/872 Canterbury Road
Roselands NSW 2196
Australia

+61280213517

Product Details

Key Features & Benefits of Soudal T-REX XTREME:

Extreme high initial tack of min. 400 kg/m²
Fast curing
Convenient triangular shaped nozzle for easy application
High shear strength after full cure
Maintains elasticity after curing for long-lasting performance
Odour-free formulation
Free of isocyanates, solvents, halogens, and acids
Excellent colour stability, weather resistance, and UV resistance
Superior adhesion on nearly all surfaces, even when slightly moist

Applications of Soudal T-REX XTREME:

Bonding in building and metal industries
Elastic bonding of objects, panels, profiles, and other pieces on common substrates
Elastic structural bonding in automotive applications such as buses, trains, trucks, caravans, and ship-building

Bonding Compatibility:

Soudal T-REX XTREME demonstrates excellent adhesion on a wide range of substrates including metals like steel, AlMgSi1, brass, electrolytic galvanised steel, AlCuMg1, flame galvanised steel, AlMg3, and steel ST1403. It also bonds effectively to plastics such as polystyrene, polycarbonate (Makrolon®), PVC, polyamide, glass fibre reinforced epoxy, and polyester (GRP).

For substrates like plastics, such as polycarbonate, which may vary between manufacturers, we recommend conducting a preliminary compatibility test to ensure optimal performance. Trust Soudal T-REX XTREME for unmatched bonding strength and reliability in your most demanding applications.

How to Use

Apply with a high thrust-ratio caulking gun in uniform bead strips every 15 cm on one of the substrates, then bond the substrate and tamp with a rubber hammerCheck the substrate is rigid, clean, free of dust and grease, dry or slightly moist
Remove releasing agents, processing aids and protective agents such as protection foil from plastics prior to bonding
Prepare non-porous surfaces with a Soudal Surface Activator or cleaner for critical applications
Prime porous surfaces with Soudal Primer 150
Run a preliminary adhesion and compatibility test on every surface
Keep the bond thickness at least 2 mm for the elastic properties to come to full justice
Apply with a high thrust-ratio caulking gun in uniform bead strips every 15 cm on one of the substrates
Always apply a bead strip on the panel corners and edges
Do not apply in closed circumferences on non-porous surfaces
Bond the substrate and tamp with a rubber hammer
Support the bonded materials if necessary
Clean tools and uncured product with Soudal Surface Cleaner or Soudal Swipex immediately after use
Allow 24 to 48 hours before the bond is fully loaded, longer for thicker adhesive layers and non-porous substrates
Where a different reactive joint sealant follows, let the first sealant harden completely before applying the next

Technical Specifications

Product Type: One-component moisture-curing hybrid polymer high strength adhesive
Chemical Base: SMX Hybrid Polymer
Consistency: Stable paste
Curing System: Moisture curing
Colour: White, black
Initial Tack: Min. 400 kg/m2*
Skin Formation: Ca. 4 min @ 23C, 50% RH*
Curing Speed: Ca. 2 mm/24h @ 23C, 50% RH*
Hardness: Ca. 55 +/- 5 Shore A*
Density: Ca. 1.46 g/mL*
Maximum Allowed Distortion: +/- 20% (ISO 11600)*
Max. Tension: Ca. 2.10 N/mm2 (MPa) (ISO 37)*
Elasticity Modulus 100%: Ca. 1.60 N/mm2 (MPa) (ISO 37)*
Elongation at Break: 200% (ISO 37)*
Temperature Resistance: -40C to 90C*
Application Temperature: 5C to 35C
Optimal Bond Thickness: At least 2 mm for the elastic properties to come to full justice
Bead Pattern: Uniform bead strips every 15 cm, plus a strip on all panel corners and edges
Full Load: 24 to 48 hours
Nozzle: Triangular shaped nozzle included
Flash Point: Above 100C (SDS)
Total VOC: Less than 1% (SDS)
Packaging: 290 mL cartridge
Shelf Life: 15 months in original unopened packaging between 5C and 25C
Hazard Classification: Not classified as hazardous under Safe Work Australia GHS 7, not classified as Dangerous Goods (SDS)
* Soudal published values quoted against ISO test methods; no accredited third-party test report is cited in the TDS

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Technical overview

T-Rex X-Treme is a one-component, moisture-curing SMX Hybrid Polymer high strength adhesive with extreme tack for immediate bonding of extremely heavy materials without additional support. Soudal publish an extreme high initial tack of min. 400 kg/m2, so it carries heavy loads straight away and suits installing heavy items without slipping. It is applied in uniform bead strips every 15 cm, bonded and tamped with a rubber hammer, and can be fully loaded after 24 to 48 hours. It is free of isocyanates, solvents, halogens and acids, stays elastic after curing and adheres to most common substrates, even damp ones. All published performance figures are Soudal values quoted against ISO test methods; the TDS cites no accredited third-party test report and lists no product certificate.

View full technical data sheet

Key applications

Bonding in the building, construction and metal industry
Elastic bonding of objects, panels, profiles and other pieces on the most common substrates (wood, MDF, chipboard)
Elastic structural bonding in automotive applications: buses, trains, trucks, caravans or trailers
Installing heavy items without slipping
Bonding to the bottom of natural stone tiles
Bonded facade panels, refer to the Soudal Panel System

Surface suitability

Brick and concrete (rigid, clean, free of dust and grease, dry or slightly moist)
Metals tested by Soudal (stainless steel, AlMgSi1, electro-galvanized steel, AlCuMg1, hot dip galvanized steel, AlMg3, steel ST1403)
Plastics tested by Soudal (polystyrene, PVC, polyamide, fiberglass reinforced epoxy, polyester)
Treated timber, wood, MDF and chipboard
Non-porous surfaces (prepared with a Soudal Surface Activator or cleaner)
Porous surfaces (primed with Soudal Primer 150)
Natural stone (bonding to the bottom of tiles only, not as a joint sealant on this surface)

T-Rex X-Treme can be used for bonding of natural stone but cannot be used as a joint sealant on that surface, so only on the bottom of natural stone tiles. Not suitable for bonding aquariums. Do not use in applications where continuous water immersion is possible. Not suitable for PE, PP, PTFE, bituminous substrates, copper or copper-containing materials such as bronze and brass. Bonding plastics like PMMA or polycarbonate in stress loaded applications can give rise to stress cracking and crazing and is not recommended. Do not apply in closed circumferences on non-porous surfaces. Application temperature is 5C to 35C. The optimal bond thickness is at least 2 mm for the elastic properties to come to full justice. For thicker adhesive layers and non-porous substrates, curing time is extended, and the bond can only be fully loaded after 24 to 48 hours, so support the bonded materials if necessary. A total absence of UV can cause a colour change, and discolouration due to chemicals, high temperatures or UV radiation may occur without affecting the technical properties. Avoid contact with bitumen, tar or other plasticizer releasing materials such as EPDM, neoprene and butyl, which can give rise to discolouration and loss of adhesion. Run a preliminary adhesion and compatibility test on every surface.

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Technical Specifications

Product Type	One-component moisture-curing hybrid polymer high strength adhesive
Chemical Base	SMX Hybrid Polymer
Consistency	Stable paste
Curing System	Moisture curing
Colour	White, black
Initial Tack	Min. 400 kg/m2*
Skin Formation	Ca. 4 min @ 23C, 50% RH*
Curing Speed	Ca. 2 mm/24h @ 23C, 50% RH*
Hardness	Ca. 55 +/- 5 Shore A*
Density	Ca. 1.46 g/mL*
Maximum Allowed Distortion	+/- 20% (ISO 11600)*
Max. Tension	Ca. 2.10 N/mm2 (MPa) (ISO 37)*
Elasticity Modulus 100%	Ca. 1.60 N/mm2 (MPa) (ISO 37)*
Elongation at Break	200% (ISO 37)*
Temperature Resistance	-40C to 90C*
Application Temperature	5C to 35C
Optimal Bond Thickness	At least 2 mm for the elastic properties to come to full justice
Bead Pattern	Uniform bead strips every 15 cm, plus a strip on all panel corners and edges
Full Load	24 to 48 hours
Nozzle	Triangular shaped nozzle included
Flash Point	Above 100C (SDS)
Total VOC	Less than 1% (SDS)
Packaging	290 mL cartridge
Shelf Life	15 months in original unopened packaging between 5C and 25C
Hazard Classification	Not classified as hazardous under Safe Work Australia GHS 7, not classified as Dangerous Goods (SDS)
* Soudal published values quoted against ISO test methods; no accredited third-party test report is cited in the TDS

Frequently asked questions

View all FAQs

How do I apply T-Rex X-Treme for panel bonding?

Application
Apply bead strips every 15 cm on one substrate with high thrust-ratio caulking gun. Bond and tamp with a rubber hammer; support if necessary.
Which substrates suit it?

Compatibility
Excellent adhesion on stainless steel, galvanised steel, aluminium alloys, brass, brick, concrete, treated timber, PVC and many plastics. Recommend test on PMMA and polycarbonate.
How much per cartridge?

Coverage & Coats
Single 290 mL cartridge per bonding job — apply as beads every 15 cm. Coverage depends on bead geometry.
Skin time and full load time?

Cure & Dry Time
Skin formation ≈ 4 min at 23°C/50% RH. Cure speed ≈ 2 mm/24h. Bond can be fully loaded after 24-48 hours.
What is the shelf life?

Storage
15 months in original unopened cartridge in cool dry storage at 5-25°C.
Why is initial grab so high?

Performance
The SMX hybrid polymer formulation produces minimum 400 kg/m² tack — supports heavy panels without temporary mechanical support during cure.

Why trade professionals choose Soudal

Soudal is a widely used sealant and adhesive brand supplied to the Australian trade, and the range stocked here is focused on cartridge products for wet area and general construction work. You will find Soudal Silicone All Purpose alongside the T-Rex family of hybrid adhesive sealants, including T-Rex Crystal, T-REX XTREME, T Rex Flexi and T-Rex Power Fast Grab. Reach for the silicone on standard perimeter and sanitary joints, and a T-Rex hybrid when the job calls for grab and bonding strength.

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