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Cromar AlphaChem Polyurethane 25 is a single component, fast curing, polyurethane based elastomeric sealant used for joints where a highly elastic strong bond is required, with excellent chemical, mechanical and weather resistance.
- Specially developed for bonding various building materials & sealing of expansion joints
- Overpaintable with water based paints (solvent based paints always test for compatibility)
- Low modulus, high strength sealant and adhesive
Cromar AlphaChem Polyurethane 25 is a single component, fast curing, polyurethane based elastomeric sealant used for joints where a highly elastic strong bond is required, with excellent weathering properties. As a sealant it adheres, without a primer, to substrates such as wood, concrete, stone, anodized aluminium, polyester, glass, ceramics, baked clay. Overpaintable with water based paints (solvent based paints always test to ascertain compatibility).
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Features & Benefits
- Fast curing
- Highly elastic strong bond
- Good resistance to weathering
- Good adhesion without primer to most building materials (see priming)
- Shore A Hardness: 25
- Overpaintable with water based paints. For solvent based tesing for compatibility is recommended
- CE Marked to EN 15651-1 F -EXT-INT CC
Ideal For:
- All sealing and bonding applications in the building and construction industry
- Sealing expansion joints in concrete floors
Priming
- Adheres without primer on most commonly used substrates such as wood, anodized aluminium, polyester, glass, concrete, baked clay, stone and ceramic tiles
- For difficult materials such as plastics (PVC, ABS, PMMA) or materials such as raw aluminium or lacquered metal perform preliminary tests to determine whether surface preparation is necessary.
Limitations
- Do not apply at a temperature below 5°C
- For difficult materials, including plastics such as PVC, ABS, PMMA, or materials such as raw aluminium or lacquered metal, it is recommended that you perform preliminary tests to determine whether a surface preparation is necessary
- Avoid any contact with non-cured MS, hybrid PU or silicone sealants as well as with alcohols or ammonia during curing
- We recommend on solvent based paints that tests are carried out before hand to ascertain compatibility before overpainting
- It is the user’s responsibility to ensure suitability for use
- Read the label prior to use it contains essential health and safety information
Data sheet
- For Use By
- Professional Use
- Application Method
- AlphaChem professional heavy duty sealant gun
- Single, Two or Three Pack
- Single
- Product Certifications
- CE Marked to EN15651 F-EXT-INT-CC and EN15651-4 PW-EXT-INT-CC
- Pack Size
- 300ml cartridges, 600ml foils
- Recommended Thinner/Cleaner
- Cromar AlphaChem Grafters Wipes
- Max. Application Temperature
- 35°C
- Min. Application Temperature
- 5°C
- Density
- (at 20°C) Black 1.15 ± 0.02, Other Colours: 1.16 ± 0.02
- Heat Resistance (up-to)
- 80°C (on cured sealant)
- Shelf Life (from date of manufacture)
- 12 months
- Elongation at break
- (ISO 8339) 400%
- Elongation at break
- (ISO 37) 600%
- Base Type
- Polyurethane
- Suitable For Use On
- Concrete
- Suitable For Use On
- Stone
- Suitable For Use On
- Wood
- Suitable For Use On
- Glass
- Suitable For Use On
- Concrete Floors
- Suitable For Use On
- Ceramics
- Suitable For Use On
- Anodised Aluminium
- Suitable For Use On
- Polyester
- Suitable For Use On
- Clay
- Application Method
- Sealant Gun
- Product Usage Type
- Sealer
- Product Range
- Alphachem
- Colour Family
- Grey
- Colour Family
- White
Questions
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IMPORTANT SHIPPING & DELIVERY INFORMATION
Cromar AlphaChem Polyurethane 25 is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT