掃口粉防水嗎？

優質聚合物掃口粉具備良好防水性能。符合EN 13888 CG2WA標準的產品具有低吸水率及高耐磨性。如需完全防水（如泳池），建議使用環氧樹脂掃口粉。

CG2WA級掃口粉是什麼意思？

CG2WA是水泥基掃口粉的最高綜合評級，代表產品同時具備改良型黏結強度、低吸水率及高耐磨性。對於香港潮濕環境，建議選用CG2WA級或以上。

環氧掃口粉同普通掃口粉有咩分別？

環氧掃口粉（RG級）完全防水、耐化學品、防霉防污，適用泳池、廚房、實驗室等高要求環境。普通水泥基掃口粉適用一般室內鋪磚。

掃口粉有幾多種顏色可選？

視乎品牌型號，掃口粉可提供多種顏色。Mapei Ultracolor Plus提供超過40種顏色，Optimix TG410E及Weber Webergrout Fine亦有多色可選。

浴室應該用邊款掃口粉？

浴室建議使用CG2WA級或以上的防霉防水掃口粉，例如Weber Webergrout Fine、Mapei Ultracolor Plus或Optimix TG410E。

Tile Grout

Summary:

Tile grout is the material used to fill joints between tiles after installation, providing waterproofing, mould resistance, and wear protection. Modern polymer-modified grouts far outperform traditional white cement grouting, effectively preventing water seepage and mould growth in joints. Classified under European standard EN 13888 into CG (cementitious) and RG (epoxy resin) categories, choose the appropriate grade for your application.

⚠️ Important Notice:

The following information is for general reference only. Grout selection should match the tile type, joint width and application environment. Always refer to the product Technical Data Sheet (TDS) before installation. For questions, contact Wah Hing via WhatsApp or consult relevant professionals.

How to Choose Tile Grout?

Choose grout based on your application environment and joint width:

Standard indoor floor and wall tiles → Cementitious grout (CG2WA class), e.g. Weber Webergrout Fine, Optimix TG410E, Mapei Keracolor FF
Bathrooms, kitchens (waterproof, anti-mould) → CG2WA class or above, e.g. Weber Webergrout Fine, Mapei Ultracolor Plus (fast-setting CG2FWA), Optimix TG410E
Swimming pools, water tanks → Epoxy resin grout, e.g. Weber Weberepox Easy, Mapei Kerapoxy; or water authority approved cementitious Optimix TG410E (HK Water Supplies Regulation Schedule 2 compliant)
Food processing, laboratories (chemical resistant) → Epoxy resin grout, e.g. Mapei Kerapoxy, Weber Weberepox Easy
Narrow joint decorative grouting → Optimix TG480 epoxy cartridge grout (no mixing required) or Weber Webergrout Fine
Ready-to-use (no mixing) → Mapei Flexcolor ready-to-use acrylic resin grout paste

Summary:

⚠️ Important Notice:

How to Choose Tile Grout?

Choose grout based on your application environment and joint width:

Standard indoor floor and wall tiles → Cementitious grout (CG2WA class), e.g. Weber Webergrout Fine, Optimix TG410E, Mapei Keracolor FF
Bathrooms, kitchens (waterproof, anti-mould) → CG2WA class or above, e.g. Weber Webergrout Fine, Mapei Ultracolor Plus (fast-setting CG2FWA), Optimix TG410E
Swimming pools, water tanks → Epoxy resin grout, e.g. Weber Weberepox Easy, Mapei Kerapoxy; or water authority approved cementitious Optimix TG410E (HK Water Supplies Regulation Schedule 2 compliant)
Food processing, laboratories (chemical resistant) → Epoxy resin grout, e.g. Mapei Kerapoxy, Weber Weberepox Easy
Narrow joint decorative grouting → Optimix TG480 epoxy cartridge grout (no mixing required) or Weber Webergrout Fine
Ready-to-use (no mixing) → Mapei Flexcolor ready-to-use acrylic resin grout paste

EN 13888 Tile Grout Classification

EN 13888 is the European standard for classifying tile grouts, divided into CG (cementitious) and RG (epoxy resin) categories. Numbers indicate performance level: 1 for standard, 2 for improved. Letter suffixes denote additional properties: W for reduced water absorption, A for high abrasion resistance, F for fast setting.

Why Choose CG2WA Class Grout?

CG2WA is the highest combined rating for cementitious grouts, meaning the product simultaneously achieves improved bond strength (2), reduced water absorption (W), and high abrasion resistance (A). Compared to basic CG1 grouts, CG2WA products offer superior waterproofing — joints are less prone to water seepage and mould growth, and the surface is more durable and resistant to powdering. For Hong Kong's humid environment, especially in bathrooms, kitchens, and terraces, CG2WA class or above is recommended. All cementitious grouts supplied by Wah Hing meet the CG2WA standard.

Grade	Meaning	Products at Wah Hing
CG2WA	Cementitious · Improved · Low water absorption · High abrasion resistance	Webergrout Fine, TG410E, Keracolor FF, Keracolor GG, Ronacrete Color Grout
CG2FWA	Cementitious · Improved · Fast setting · Low water absorption · High abrasion	Ultracolor Plus
RG	Epoxy resin · Chemical resistant · Fully waterproof	Weberepox Easy, Kerapoxy, Ronagrout EPG, TG480

How to Choose Tile Grout?

Choose grout based on your application environment and joint width:

Standard indoor floor and wall tiles → Cementitious grout (CG2WA class), e.g. Weber Webergrout Fine, Optimix TG410E, Mapei Keracolor FF
Bathrooms, kitchens (waterproof, anti-mould) → CG2WA class or above, e.g. Weber Webergrout Fine, Mapei Ultracolor Plus (fast-setting CG2FWA), Optimix TG410E
Swimming pools, water tanks → Epoxy resin grout, e.g. Weber Weberepox Easy, Mapei Kerapoxy; or water authority approved cementitious Optimix TG410E (HK Water Supplies Regulation Schedule 2 compliant)
Food processing, laboratories (chemical resistant) → Epoxy resin grout, e.g. Mapei Kerapoxy, Weber Weberepox Easy
Narrow joint decorative grouting → Optimix TG480 epoxy cartridge grout (no mixing required) or Weber Webergrout Fine
Ready-to-use (no mixing) → Mapei Flexcolor ready-to-use acrylic resin grout paste

Product classifications are based on manufacturer data.

Brands Available

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