瓷磚膠（膠沙）同英泥沙有咩分別？

瓷磚膠以化學黏結方式固定瓷磚，黏結強度遠高於傳統英泥沙，採用薄批施工更省時省力。瓷磚膠按歐洲標準EN 12004分級，適用於各類瓷磚及石材鋪貼。

C1級同C2級瓷磚膠有咩分別？

C1級為標準型，適用普通陶質磚及室內地磚。C2級為改良型，黏結力更高，適用拋光磚、瓷質磚、大板磚及外牆鋪磚。

大板磚應該用邊款膠沙？

大板磚建議使用C2 S1級柔韌型瓷磚膠，例如Weberset 383或Optimix TA328，具備可變形能力以應對熱脹冷縮。

瓷磚膠可以用於外牆嗎？

可以，但外牆鋪磚涉及安全風險，必須使用C2 S1級或以上的瓷磚膠，並嚴格依照產品TDS及工程規範施工。

環氧樹脂瓷磚膠（R級）適用於什麼環境？

R級為反應型樹脂瓷磚膠，適用於需要極高黏結強度及耐化學品的環境，例如泳池、實驗室及工業設施。

Tile Adhesive

Summary:

Tile adhesive (commonly known as "glue sand" in Hong Kong) is a modern tiling material that replaces traditional cement-sand mortar. Classified under the European standard EN 12004 into C1 (standard) and C2 (improved) grades, tile adhesive bonds tiles through chemical adhesion with significantly higher bond strength than cement mortar. Its thin-bed application method saves time and effort, suitable for indoor and outdoor tiling of all types including large-format tiles and stone.

⚠️ Important Notice:

The following information is for general reference only. Floor tiling has more room for error, but wall tiling (especially exterior walls) involves safety risks — falling tiles can cause personal injury. For wall and exterior applications, strictly follow the product Technical Data Sheet (TDS) and engineering specifications. Do not rely solely on this page as a construction guide. For questions, contact Wah Hing via WhatsApp or consult relevant professionals.

How to Choose Tile Adhesive by EN 12004 Standard?

The most important factors in choosing tile adhesive are tile type and installation location:

Standard ceramic tiles, indoor floor tiles → C1 grade is sufficient, e.g. GOTECH GT Tile Fix 616 (C1TE), Weberset 303 (C1TE) or Optimix TA313 (C1TE)
Polished tiles, porcelain tiles → C2 grade, e.g. Weberset 353 (C2TE)
Large-format tiles, thin porcelain panels → C2 S1 flexible grade, e.g. Weberset 383 (C2TE S1) or Optimix TA328 (C2TE S1)
Outdoor tiling, exterior walls → C2 S1 grade or above, e.g. Weberset 383 (C2TE S1) or Optimix TA328 (C2TE S1)
Fast-track projects → C2F rapid-setting, e.g. Weberset Fast Fix (C2FTE S1)

Summary:

⚠️ Important Notice:

How to Choose Tile Adhesive by EN 12004 Standard?

The most important factors in choosing tile adhesive are tile type and installation location:

Standard ceramic tiles, indoor floor tiles → C1 grade is sufficient, e.g. GOTECH GT Tile Fix 616 (C1TE), Weberset 303 (C1TE) or Optimix TA313 (C1TE)
Polished tiles, porcelain tiles → C2 grade, e.g. Weberset 353 (C2TE)
Large-format tiles, thin porcelain panels → C2 S1 flexible grade, e.g. Weberset 383 (C2TE S1) or Optimix TA328 (C2TE S1)
Outdoor tiling, exterior walls → C2 S1 grade or above, e.g. Weberset 383 (C2TE S1) or Optimix TA328 (C2TE S1)
Fast-track projects → C2F rapid-setting, e.g. Weberset Fast Fix (C2FTE S1)

EN 12004 European Tile Adhesive Classification

EN 12004 is the European standard for classifying tile adhesives, categorised by binder type into three classes: C (cementitious), D (dispersion/paste), and R (reaction resin, e.g. epoxy or polyurethane). Numbers indicate performance level: 1 for standard, 2 for improved (higher bond strength). Letter suffixes denote additional properties: T for slip resistance, E for extended open time, F for fast setting. S1 and S2 indicate deformability (flexibility) — higher grades suit environments with greater thermal expansion and contraction.

Grade	Meaning	Products Available at Wah Hing
C1T	Cementitious · Standard bond · Slip resistant	SikaCeram-113 HK, Kerabond T
C1TE	Cementitious · Standard bond · Slip resistant · Extended open time	GOTECH GT Tile Fix 616, Weberset 303, Optimix TA313
C2TE	Cementitious · Improved bond · Slip resistant · Extended open time	Weberset 353, TF Eco, Adesilex P9, Keraflex
C2TE S1	Cementitious · Improved bond · Slip resistant · Extended open time · Deformable	Weberset 383, TF Eco Plus, TA328, TA328S, Keraflex Maxi S1
C2FTE S1	Cementitious · Improved bond · Fast setting · Slip resistant · Extended open time · Deformable	Weberset Fast Fix
C2FT	Cementitious · Improved bond · Fast setting · Slip resistant	Optimix SA329
C2 + CG2	Cementitious · Improved bond + Grouting function	Weberset Mosaic
D1TE	Dispersion (ready-to-use paste) · Standard bond	Mapemastic Easy
D2TE	Dispersion (ready-to-use paste) · Improved bond	Ultramastic III
R2T	Reaction resin (polyurethane) · Improved bond	Keralastic T

How to Choose Tile Adhesive by EN 12004 Standard?

The most important factors in choosing tile adhesive are tile type and installation location:

Standard ceramic tiles, indoor floor tiles → C1 grade is sufficient, e.g. GOTECH GT Tile Fix 616 (C1TE), Weberset 303 (C1TE) or Optimix TA313 (C1TE)
Polished tiles, porcelain tiles → C2 grade, e.g. Weberset 353
Large-format tiles, thin porcelain panels → C2 S1 flexible grade, e.g. Weberset 383 or Optimix TA328
Outdoor tiling, exterior walls → C2 S1 grade or above, e.g. Weberset 383 (C2TE S1) or Optimix TA328 (C2TE S1)
Fast-track projects → C2F rapid-setting, e.g. Weberset Fast Fix (C2FTE S1)

Product EN 12004 classifications are based on manufacturer data.

Brands Available

Wah Hing supplies tile adhesives from GOTECH, Weber, Optimix, Mapei, Sika, and other brands. Most products are typically in stock, with select models available to order via WhatsApp. Tile adhesive can be purchased by individual bags — no full-pallet minimum required.