Grind and Seal with Mapecrete Hard LI and Protector FF: A Cleaner, Harder Concrete Finish
Not every concrete surface needs a thick epoxy or polyaspartic coating. For many interior spaces in Markham, Richmond Hill, and the wider GTA, a grind-and-seal system offers a faster and more economical way to turn dusty or worn concrete into a durable, attractive floor with a natural look and protective shine.
The process combines mechanical grinding with a lithium silicate densifier and a film-forming protective sealer. Two MAPEI products that work especially well together are Mapecrete Hard LI and Mapecrete Protector FF.
What Is Grind and Seal?
Diamond grinding removes contaminants, old coatings, and minor imperfections while opening the pores. After thorough cleaning, a densifier hardens the concrete from within and a protective sealer adds stain resistance and gloss. It is typically faster and lower-cost than full multi-step polishing or thick film coatings, while still delivering a clean, serviceable interior floor.
Mapecrete Hard LI (Lithium Silicate Densifier)
This water-based, VOC-free lithium silicate penetrates the concrete and reacts with free lime to form additional calcium silicate hydrate (C-S-H). The result is a denser, harder surface that is dustproof and more resistant to acids, alkalis, salts, oils, and water. It works on both new and existing hard-troweled concrete and helps improve older, soft, or powdery slabs. Typical coverage is 250–800 sq. ft. per U.S. gallon.
Mapecrete Protector FF (High-Gloss Protective Coating)
A film-forming, high-gloss sealer designed for interior polished or hard-troweled floors. It is ideal over surfaces densified with Mapecrete Hard LI. Benefits include long-lasting shine, improved stain and soil resistance, easy cleaning, and a non-yellowing formula. Apply two coats (coverage typically 400–800 sq. ft. per gallon); optional high-speed burnishing increases gloss. Note: Protector FF is for interior use only.
Typical Process
- Grind and prepare the slab (remove coatings and contaminants).
- Clean thoroughly (HEPA vacuum).
- Apply Mapecrete Hard LI (keep surface wet 5–10 minutes, no puddles or dried residue).
- Allow proper drying.
- Apply two coats of Mapecrete Protector FF (optional burnish for higher sheen).
Best Applications
Ideal for interior commercial and retail spaces, showrooms, offices, basements, and light residential areas in Richmond Hill, Markham, and the GTA where you want the natural concrete look with better hardness, dust control, and stain resistance. It is not a replacement for robust polyaspartic or epoxy systems in garages exposed to road salt, hot tires, and vehicle traffic.
Considering a grind-and-seal project? We supply Mapecrete Hard LI and Protector FF and can help determine whether this system (or a full coating) is right for your space.
Visit the showroom at 21 Fairburn Dr Unit 6, Markham, or call (647) 336-3133 to speak with Charles (charlesw@toplinemarkham.ca).
Topline Markham supplies and installs flooring systems across Richmond Hill, Markham, Unionville, Stouffville, Vaughan, Aurora, Newmarket, and the greater GTA.
使用 Mapecrete Hard LI 同 Protector FF 進行研磨封孔：更乾淨、更堅硬的混凝土地面
並非所有混凝土地面都需要厚身的環氧或聚天門冬氨酸塗層。對於萬錦市（Markham）、列治文山（Richmond Hill）及大部份 GTA 的室內空間，研磨封孔系統提供更快、更經濟的方法，將多塵或磨損的混凝土變成耐用、美觀、帶自然質感及保護光澤的地板。
過程結合機械研磨、鋰矽酸鹽增密劑及成膜保護密封劑。兩款配合使用效果特別好的 MAPEI 產品是 Mapecrete Hard LI 同 Mapecrete Protector FF。
什麼是研磨封孔？
鑽石研磨可去除污染物、舊塗層及輕微瑕疵，同時打開毛孔。徹底清潔後，增密劑從內部硬化混凝土，保護密封劑則增加防污及光澤。相比完整多步驟拋光或厚膜塗層，通常更快、成本更低，同時仍能提供乾淨、實用的室內地板。
Mapecrete Hard LI（鋰矽酸鹽增密劑）
這款水性、無 VOC 的鋰矽酸鹽滲透混凝土並與游離石灰反應，形成額外的水化矽酸鈣（C-S-H）。結果是更緻密、更堅硬的表面，能防塵，並提高對酸、鹼、鹽、油及水的抵抗力。適用於新舊硬抹面混凝土，並可改善較舊、軟或粉狀的地面。典型覆蓋率為每加侖 250–800 平方呎。
Mapecrete Protector FF（高光澤保護塗層）
專為室內拋光或硬抹面混凝土地面設計的成膜高光澤密封劑。特別適合塗在已使用 Mapecrete Hard LI 增密的地面上。好處包括持久光澤、更好防污防塵、易清潔，以及不黃變配方。一般塗兩層（覆蓋率通常每加侖 400–800 平方呎）；可選高速拋光增加光澤。注意：Protector FF 只適合室內使用。
典型工序
- 研磨及準備地面（去除塗層及污染物）。
- 徹底清潔（HEPA 吸塵）。
- 塗上 Mapecrete Hard LI（保持表面濕潤 5–10 分鐘，避免積水或乾涸殘留）。
- 讓其適當乾燥。
- 塗兩層 Mapecrete Protector FF（可選拋光以增加光澤）。
最合適的應用
適合列治文山、萬錦市及 GTA 的室內商業及零售空間、展示廳、辦公室、地下室及輕住宅區域，想要自然混凝土外觀同時提升硬度、防塵及防污能力。對於受融雪鹽、熱輪胎及車輛交通影響的車庫，則不適合取代強韌的聚天門冬氨酸或環氧系統。
考慮研磨封孔項目？ 我們供應 Mapecrete Hard LI 同 Protector FF，並可協助判斷這套系統（或完整塗層）是否適合你的空間。
歡迎前往萬錦市展示中心 21 Fairburn Dr Unit 6, Markham，或致電 (647) 336-3133 與 Charles 聯絡（charlesw@toplinemarkham.ca）。
Topline Markham 供應並安裝地板系統，服務範圍涵蓋列治文山、萬錦市、Unionville、Stouffville、旺市、奧羅拉、新市以及大部份 GTA。