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Wet Substrate Polyurethane Joint Sealant Adhesive :


Description Toolbox is a hybrid moisture curing adhesive and sealant with high grab strength for use in a wide variety of critical adhesive and sealing applications. Toolbox cures to form a tough, waterproof seal and will adhere to a wide range of substrates. Its versatility means it can replace most water based and solvent based construction adhesives, polyurethane adhesive and sealants as well as silicones in construction, marine, transport and industrial assembly applications. Toolbox is supplied in white, grey and black colours.  


  • Cures to form a permanently flexible and elastic bond.
  • Rapid skinning and curing.
  • High bond strength - suited to Professional and DIY, construction, marine and automotive environments.
  • Primer-free adhesion to wide range of surfaces.
  • Paintable with most water based paints (Refer painting for alternative systems)
  • Interior / exterior - High UV resistance
  • Heat resistant to 100oC.
  • Solvent and isocyanate free
  • Resistant to salt and chlorinated water
  • Suitable for bonding wet non-porous substrates (refer Surface Preparation details).
  • Shore A: 55+/-5. Suitable as an anti-pick sealant/adhesive in correctional facilities
  • Trafficable sealant
  • Suitable for natural stone, blue stone, granite (refer limitations).
  • Mould resistant
  • Safe on mirrors, except safety backed mirrors   


  • Sealing lap joints in box guttering. air conditioning ducts and wet areas
  • Adhesive for fixing wall panels to studs, floor boards to joists.
  • Use in gasket type applications in water tank flanges.
  • Bonding insulation and decorative panels to solid surfaces.
  • Re-fixing loose ceramic tiles.
  • Multiple high performance bonding and sealing applications in transport - trains, buses, special purpose vehicles, caravans, 4 wheel drive trailers etc.
  • Adhering and sealing acrylic/ABS shower units
  • Adhering end-caps to retaining walls
  • Sealing gaps and expansion joints in concrete, brick, mortar, metal and stonework.   

Toolbox is suitable for Green Building applications requiring VOC of maximum 30g/lt, and meets the requirements of LEED Certification: Indoor Environmental Quality Credit 4.1 (Low-Emitting Materials: Adhesives and Sealants). See MSDS for VOC value.

Coverage 400g cartridge will give approximately 15 lineal metres of a 5mm bead.  

Compatible Substrates: Aluminum, Ceramic, Glass, Polystyrene/Styrofoam, Steel inc. Galvanized Steel, Timber, Colorbond, Brick, Zincalume, Fibreglass, Cement render, Ceramic, Concrete, Mirrors, Fibre cement sheet, Rubbers (Pretest), FRP / GRP, Most plastics (pretest), Plasterboard, Coatings / finishes (Pretest). Note: Colorbond and Zincalume are the registered trademarks of Bluescope Steel Limited.

Service Temperature Toolbox can withstand temperatures between -40oC and 100oC.  


  • Maximum gap 30 mm and maximum movement of +/-20%
  • Not suitable as a joint sealant or adhesive for permanent immersion in chlorinated water
  • Not suitable for white marble due to potential staining
  • Not recommended for safety backed mirrors
  • Not suitable for glazing   

Surface Preparation

All surfaces must be clean, dry (except for non-porous application indicated below), sound and free of dust, oil, old sealant or other contamination. In cases of wet nonporous substrates; Toolbox can be applied directly to wet Aluminium, Zincalume and Colorbond. However, application must be in such a manner that Toolbox completely dispels the water and achieves complete coverage on the non-porous substrate. A second substrate (dry, or previously listed wet non-porous substrate) must be brought into contact with Toolbox in a manner it also gains complete contact with Toolbox. Other non-porous wet surfaces should be pre-tested to ensure satisfactory adhesion prior to use. In all other cases all substrates must be dry.

Lightly contaminated surfaces should be wiped with Isopropyl Alcohol (IPA) using the 2-rag wipe method. Apply IPA to a clean lintfree cloth and wipe onto the surface to be cleaned to solubilise and remove the majority of the contaminant. A clean dry cloth should then be applied to remove remaining contamination and dry the surface. Ensure wet cleaner is not allowed to dry on surface. For more heavily contaminated surfaces or where the IPA does not remove the contaminant, a generic wax and grease remover should be applied using the same 2- rag wipe method. Once this has been completed the surface should be given a final clean with IPA using the 2-rag wipe method to ensure the surface is adequately prepared. Adhesion to metals and some surface finishes can be further improved by light abrasion prior to cleaning with IPA using the 2 rag-wipe method. Manufacturers of plastics should be consulted about suitable cleaning solvents. Adhesion to plastics should be pre-tested. Mask either side of joint to produce a neat finish. Use a suitable sized foam backing rod or polyethylene bond breaker tape to prevent three sided joint contact impeding the free and even deformation of the sealant in a cyclic joint.  

Product Application - Adhesive

Cut tip off cartridge. Angle cut nozzle to desired size. Screw nozzle onto cartridge. Apply product to one surface to be bonded. Before product skins, mate with other surface. When bonding a sheet or panel to a large, flat surface, apply 5mm diameter beads every 30- 40cm along the entire length. Press into position and brace until set. Any flooring application to full surfaces (e.g. concrete or plywood) must be fully bonded, that is a full layer of adhesive over entire area (spot gluing or bead application is not recommended). Temporary or mechanical fixing may be required depending upon substrates. Bond will develop dependant upon thickness of adhesive, and ambient conditions. Higher humidity and warmer temperatures will hasten bond development. Minimum film thickness for bonding applications is approx 1mm.  

Product Application - Sealant

Cut tip off cartridge. Angle cut nozzle to desired size. Screw nozzle onto cartridge. Apply product in a steady, continuous flow by pushing the sealant ahead of the nozzle so that it completely fills the joint and is in contact with both sides. Immediately after application, tool the sealant using a spatula. Avoid contact with alcohol or other solvent cleaners during cure. Remember to remove masking tape before the sealant skins. A good joint design is imperative if a sound, durable seal is to be achieved. Joint Design: In general, joints should be designed to be at least 4 times as wide as the anticipated movement. Joint width and depth should not be less than 6 mm and depth should never exceed width.

Joint Depth to Width Ratios:

Joint Width

Joint depth

< 10 mm

Depth = Width

10mm-30mm max

10 mm - 15 mm

Modwood Specification

Toolbox is approved for use with ModWood decking provided it is used in conjunction with the Klevaclip concealed fixing system. Refer to Klevaklip for installation details.  

As a sealant for lap joints

Apply Toolbox to one surface as a bead then rapidly assemble the components. For best results, use mechanical fastening. Predrill all holes. Toolbox will be touch dry in approx 10 minutes (depending on temperature) and is repositionable for up to 15 minutes (again depending on temperature and moisture). Toolbox is designed as a sealant for wide and active joints with movement of less than +/-20%.  

Application temperature

Toolbox should be applied below 35oC, and can be applied in temperatures below 0oC. However, ensure that the substrates are clean and dry when Toolbox is applied (unless wet substrate is appropriate as covered in this document) and do not apply where conditions may interfere with good bonding / sealing e.g. do not apply if frost or ice is present.  

Cure Time

Toolbox will form a tack free skin in 10-15 minutes depending upon conditions. Cure rate is 2-3mm per day depending upon temperature and humidity.  

Performance Summary

  • S.G. 1.47 g / mL
  • Skin Time 10-15 minutes at 22 degrees
  • Reposition Time 25 minutes @ 20oC
  • Cure Rate 2-3mm per day
  • Tear Strength DIN 53504 3.2MPa
  • Elastic recovery 75%
  • Modulus of Elasticity DIN 53504 @100% 1.6MPa
  • Elongation at break DIN 53504 400%
  • Maximum joint movement capability +/-20%
  • Thermal Conductivity ca. 0.5 W.m-1K-1
  • Hardness Shore A 55+/-5   


Toolbox may be painted wet on wet or after it has cured with most WB paint systems. Direct over coating with Solvent-Based paint systems is not recommended. A WB primer must first be used to over coat ToolBox before any application of Solvent-Based paint. Test if unsure, especially when industrial grade coatings are used, to ensure that:

  • The coating bonds to Toolbox satisfactorily
  • The coating does not affect the curing of Toolbox (e.g. allows moisture to reach the Toolbox surface if applied over a non porous surface)
  • That Toolbox does not affect the cure of the coating (e.g. result in a sticky surface)
  • The coating does not craze after application over Toolbox Clean Up Clean up uncured adhesive with mineral spirits. Cured material can be removed by trimming with a knife or scraper 


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