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Gypsum Block
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GREENTECH Gypsum Block is an eco-certified building material appliable for non-load bearing partition wall system. Widely trusted and applied in Hong Kong and Greater China, it ensures superior installation ease, exceptional performance, and sustainable benefits for greener construction.


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Advantage - Why GREENTECH Gypsum Block? 

GREENTECH Gypsum Block Walling System is a completely innovative solution providing significant benefits to the high-demanding construction industry and our physical environments. This enables Developers, Architects, Designers, Contractors and Applicators to optimize cost efficiency, time, and ensure superior quality in their projects. 


Our Product

  • GL-66 GYPFLOW LEVELER
  • GL-62 GYPFLOW SCREED
  • GP-2L GYPSPRAY PLASTER
  • GP-1L GYPSPRAY THIN PLASTER
  • GS-88 GYPSPRAY PUTTY
  • GS-80 GYPSPRAY SKIM COAT
  • GA-90 GYPSUM ADHESIVE
  • CPL-561 WALL FINISH
  • CPL-560 WALL SKIM
  • CPL-551 BASE PLASTER
  • CWE-328 WP ELASTIC SLURRY
  • PFL-60 PRIMER
  • PBM-19 EVA MIX
  • PBM-18 BOND MIX
  • PMS-11 MOISTURE SEALER
  • CTG-701 TILE GROUT
  • CTF-728 MOSAIC FIX
  • CTF-808 SIMPLE FIX
  • CTF-818 STANDARD FIX
  • CTF-638 DURA FIX
  • CTF-858 ULTRA FIX
  • CTF-888 SUPREME FIX
  • CRM-150 STANDARD REPAIR MORTAR
  • CRM-140 MEDIUM WEIGHT REPAIR MORTAR
  • CRM-125 LIGHT WEIGHT REPAIR MORTAR
  • CBR-266 RENDER THICK
  • CWR-366 WP RENDER THICK
  • CWG-380 WP WINDOW GROUT
  • CBC-602 FLOOR SCREED
  • CWC-350 WP SCREED
  • CBD-288 SPRAYADASH
  • CWR-333 WP SPRAYARENDER
  • CBR-236 SPRAYARENDER SUPREME
  • CBR-233 SPRAYARENDER
Environmental-friendly
Strong and Durable
Water Repellent
High Construction Efficiency
Outstanding Sound Insulation
Fire Resistant & Thermal Insulation
Regulates Room Temperature and Humidity
Clean, Safe, and Sustainable Construction Site
CTF-638 DURA FIX
    Publish time 2025-08-20 21:18    

GREENTECH DURA FIX CTF-638 is a durable and high compressive strength adhesive mortar designed for floor stone and tile fixing. It is a thick bed adhesive mortar with application thickness of 5 - 20 mm without sinking, which allows applicator to adjust alignment easily.  

GREENTECH DURA FIX CTF-638 white colour is suitable for tiling of light colour marble or stone tiles without affecting the colour of tiles. Notched trowel with higher ridges or buttering onto back face method is suitable to apply.  Complies with Class C2E according to EN 12004:2017. 

For tile size larger than 1m², mix with diluted GREENTECH EVA MIX PBM-19 to achieve extra flexibility.


CTF-638 DURA FIX

  USES   

  • Floor tiling for stone and porcelain tile

  • Tiling on cementitious waterproofing material such as GREENTECH WATERPROOFING SERIES



  BENEFITS 

  • High early strength up to 1 N/mm² at 7 days

  • High adhesive and compressive strength which allow vehicle travel on tiling

  • Suitable for thick layer application which can adjust alignment easily

  • High water retention and shrinkage compensated



  PERFORMANCE