Founded 1986 · Approved aluminium window supplier to the HK Housing Authority · Founding member and chairman of the HK Aluminium Windows and Doors Association
繁 / EN
升威
LE-RELAX
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SILICONE SEALANTS · WACKER · TOPP · KCC
Silicone sealants
LE-RELAX is the sole Hong Kong distributor of Korean-made WACKER silicone sealants, with our own TOPP range, and an authorised Hong Kong distributor of KCC sealants. Whether it's windows, curtain walls, bathrooms or kitchens, there's a sealant for the job.
- WACKER sole HK distributor
- Our own TOPP range
- Authorised KCC distributor
- Made in Korea
Range
Silicone sealant range
TOPP weatherproofing sealant
WACKER · Neutral cure weatherproofing silicone · Interior and exterior joints, windows and aluminium curtain walls Ask for specs and a quote →KCC SL825 / SL825 Premium
KCC BIO-KORESEAL · Anti-mould for bathrooms and kitchens Ask for specs and a quote →Why choose LE-RELAX silicone sealants
01
WACKER sole distributor
LE-RELAX is the sole Hong Kong distributor of Korean-made WACKER silicone sealants.
02
Our own TOPP range
TOPP is LE-RELAX's own WACKER weatherproofing sealant range, in five colours: champagne, white, grey, black and bronze.
03
Authorised KCC distributor
LE-RELAX is an authorised Hong Kong distributor of KCC sealants, supplying SL907 Premium glazing sealant and BIO-KORESEAL anti-mould sealant.
04
Neutral cure
TOPP and LC909N are both neutral cure, non-corrosive to building materials, and suitable for indoor and outdoor use.
Our brands
Two Korean-made brands
WACKER · Sole HK distributor
TOPP and WACKER silicones
LE-RELAX is the sole Hong Kong distributor of Korean-made WACKER silicone sealants. Our own TOPP weatherproofing sealant is for interior and exterior joints, windows and aluminium curtain walls; LC909N is for general glazing.
KCC · Authorised HK distributor
KCC Koreseal
LE-RELAX is an authorised Hong Kong distributor of KCC sealants. SL907 Premium is for glazing; BIO-KORESEAL SL825 and SL825 Premium have an anti-mould formula for bathrooms and kitchens.
TOPP technical data
TOPP neutral cure weatherproofing silicone sealant
- Curing type
- Neutral cure
- Tack-free time
- Under 10 minutes
- Full cure time
- 7 to 14 days
- Specific gravity
- 1.37
- Hardness (Shore A)
- 25 to 30
- Tensile strength
- 10 to 15 kgf/cm²
- Movement capability
- ±30%
- Maximum elongation
- 400% to 500%
- UV and ozone resistance
- Excellent
- Application temperature
- 5°C to 40°C
- Packaging
- 300 ml cartridge
Colours
Five colours
Champagne
White
Grey
Black
Bronze
Colours are for reference only; please check the actual product.
For partition joints, window joints, interior and exterior building joints and aluminium curtain walls, on stainless steel, stone, wood, glass and aluminium windows and doors.
WhatsApp us about TOPPCertification
Certification
BS 5889:1989
TOPP · LC909N
BS 3712:1985
TOPP · LC909N
KS F 4910
Korean Industrial Standard · TOPP · LC909N
Environmental building material certification
TOPP
FAQs
FAQs
How are TOPP and WACKER related?
TOPP is LE-RELAX's own WACKER silicone sealant range, made in Korea and supplied in Hong Kong exclusively by LE-RELAX.
What's the difference between neutral cure and acetic cure silicone?
Neutral cure silicone doesn't release acetic acid as it cures, so it won't corrode aluminium, stone or metal, and it has less odour. It's the right choice for windows, doors and curtain walls.
Which one for bathrooms and kitchens?
KCC BIO-KORESEAL SL825 and SL825 Premium have an anti-fungal, anti-mould formula for damp areas such as bathrooms, toilets and kitchens.
How do I get a price?
WhatsApp 6588 1426 or your nearest store with the product, colour and quantity, and we'll reply as soon as we can. Project and trade orders are welcome.
Hong Kong stores