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webercolor outside

webercolor outside
webercolor outside

Product Benefits

  • For 3 - 12 mm joint width.
  • Ideal for industrial areas, external walls of high-rise building, external floors, and carparks.
  • Suitable for high deformable substrates like gypsum boards, plywood, cement-fiber boards.
  • Anti-fungus and black mold.
  • Low absorption of water and any stain.
  • Low VOCs

Heavy-duty and flexible tile grout ideal for external applications.

Product Features

Key Benefits

  • Able to absorb substrate deformation and temperature variation
  • Suitable for the areas when grout is expected to be flexible against substrate movement esp. for external walls
  • Suitable to use on heavy-traffic areas such as manufacturers and parking lots
  • Ideal to grout when tiling on surfaces that deflect e.g. woods and gypsum boards
  • Available in 2 colors

Technical Data

  • Density of powder : 0.9 - 1.1 g/cm3
  • Chemical curing time : 3 - 4 minutes
  • Pot life (in shade) : 20-30 minutes
  • Waiting time after tiling before grouting : 24 hours
  • Recommended joint width : 3 - 12 mm
  • Time before traffic : 24 hours
    • Remark: These test results are from laboratory test. They could be slightly different from on-site results because of the differences in applications and conditions

Limit of use

  • Not suitable for joint width smaller than 3 mm (instead weber.color classic or weber.color power should be used).
  • Not suitable to use in humid areas where grout is required to be anti-fungus (instead weber.color power should be used).
  • Not suitable to use when the joint
  • Not suitable to use in swimming pool (instead weber.color HR or weber.color poxy should be used).
  • Not suitable if grout is required to
  • be chemical-resistant and acid-resistant; industry, hospital, food-storage area, for instance (instead weber.color poxy should be used).    


มาตรฐานนานาชาติ / ยุโรป


  • ความทนทานต่อการสึกกร่อน ISO 13007 part 4.4.4 หรือ EN 12808-2
    • มาตรฐาน ≤ 2,000 mm3 l ผลการทดสอบ 74 mm3
  • การทนต่อการบิดตัวในสภาวะปกติ ISO 13007 part 4-4.1.3 หรือ EN 12808-3
    • มาตรฐาน ≥ 2.5 N/mm2 l ผลการทดสอบ 6.80 N/mm2
  • การทนต่อแรงอัดในสภาวะปกติ ISO 13007 part 4-4.1.4 หรือ EN 12808-3
    • มาตรฐาน ≥ 15.0 N/mm2 l ผลการทดสอบ 17.80 N/mm2
  • การยืดหดตัว ISO 13007 part 4-4.3 หรือ EN 12808-4
    • มาตรฐาน ≤ 3.0 mm/m l ผลการทดสอบ 1.95 mm/m
  • ค่าการดูดซึมหลังจาก 30 นาที ISO 13007 part 4-4.2 หรือ EN 12808-5
    • มาตรฐาน ≤5.0 g l ผลการทดสอบ 4.80 g
  • ค่าการดูดซึมหลังจาก 240 นาที ISO 13007 part 4-4.2 หรือ EN 12808-5
    • มาตรฐาน ≤ 10 g l ผลการทดสอบ 9.42 g




Send or download the documentation

You can either send the documentation to en-email address, or download it.


weber.color outside

EN_weber.color outside


Substrate preparation

  • The joints should be clean and dry before grouting.
  • Clean and remove any particles or contaminations remaining in the joints in order to ensure a good grout adhesion and the color uniformity.  


  • Put clean water in a bucket (the water should be at room temperature, not warm or hot). 2. Gradually add weber.color flex in the water and mix at the same time until homogeneous lump-free paste is obtained.  The mixing proportion is;    
    • 1:3           by weight (water : grout)   
    • 1:2.5        by volume (water : grout)
  • After proper mix, leave the product for 3 - 4 minutes before using in order to have the complete chemical reaction.
  • The mixture of weber.color outside should be used within 30 minutes and kept away from heat & sunlight.




  • For wall: Use weber rubber trowel or an appropriate tool to fill tile joints diagonally.    
  • For floor: Apply the mixed grout onto the area of 1 m2, and then use the rubber trowel to diagonally fill the joints.
  • Wipe off the excess grouts with damp sponge before the grout sets.
  • Clean tile surfaces with clean cloth after 2 hours.
  • Wait for 24 hours before traffic to ensure the good bonding of grout.  

Application property

  • Pot life: 30 mintes
  • Setting time: 12 hours
  • Time before traffic: at least 24 hours
  • Recommended joint-width: 3 to 12 mm
  • Application temperature: +5°C to +35°C  

Recommendation for Use

  • Avoid using the grout when the areas are exposed to direct sunlight or when the surfaces are red-hot.
  • To protect water leakage into underneath tiles and to avoid tile movement when there is foot traffic, the joint width should be at least 3 mm for both wall and floor applications.
  • In case of clay tiles or porous tiles, weber.klin tec should be used before grouting to protect the tile surfaces from grout-color stains.    



  • 1 kg bag (One bag could be used with the area of 1 mm2 approximately.)     
  • 3 kg bag (One bag could be used with the area of 3 mm2 approximately.)  

Shelf Life & Storage

  • One year after manufacturing date when stored unopened in dry and ventilated place (store airtight in dry and ventilated conditions, if remained in opened bag)