Inorganic Terrazzo Manufacturers Tell You The Conventional Methods For Renovating Inorganic Terrazzo
Jun 24, 2025
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Inorganic terrazzo is widely used in commercial spaces and high-end residences due to its wear resistance, environmental friendliness, and strong customizability. After long-term use, there may be wear, stains, or a decrease in glossiness, but refurbishment can restore its beauty and functionality. The following are the conventional renovation methods recommended by the manufacturer, combined with professional operation and practical skills, for your reference:

1, Preparation before renovation
On-Site Assessment
Check the degree of wear: determine whether partial repair or overall refurbishment is needed.
Clearing obstacles: Remove furniture, cover surrounding areas, and avoid dust pollution.
Tool preparation: grinding machine (with diamond grinding disc), industrial vacuum cleaner, repair agent, sealant, polishing pad, etc.
safety protection
Wear a mask and goggles, ensure good ventilation, and avoid inhaling dust.
2, Core steps of renovation
1. Deep cleaning
Decontamination treatment: Use neutral cleaning agents or terrazzo specific cleaning agents, combined with a hard bristled brush to remove surface oil and glue stains.
Stubborn stains: For rust spots, paint, etc., diluted hydrochloric acid (caution should be taken to avoid corrosion) or professional stain removers can be used for local treatment, and immediately rinsed clean.
2. Crack and hole repair
Fill material: Choose epoxy resin repair agent or cement-based repair mortar that matches the color of the original terrazzo.
Operation steps:
Clean the debris inside the crack and use a vacuum cleaner to remove it.
Fill the crack with repair agent, compact and smooth it, and wait for it to cure (usually 24 hours).
Lightly polish and repair the area to make it level with the surrounding area.
3. Rough grinding (repairing flatness)
Tool: Diamond grinding disc (30 # -150 # mesh).
Purpose: To remove surface aging layers and scratches, expose fresh aggregates, and lay the foundation for subsequent polishing.
Tip: Cross grind (horizontal+vertical) to ensure uniformity, and promptly clean the slurry with a vacuum cleaner.
4. Fine grinding and polishing (to enhance gloss)
Tool: Resin grinding disc (300 # -3000 # mesh).
Steps:
Gradually increase the mesh size and clean the dust after each level of polishing.
3000 # and above can be combined with polishing agent to enhance gloss using a high-speed polishing machine.
Wet grinding method (adding water) can reduce dust, but it is necessary to absorb water in a timely manner to avoid water stains.

5. Sealing and maintenance
Selection of sealant:
Penetrating sealant (such as fluorosilane): enhances hardness, prevents pollution and seepage.
Wax sealant: short-term gloss improvement, requires regular maintenance.
Operation: Apply 2-3 coats evenly, with an interval of 1 hour between each coat. After complete curing (24-48 hours), use.
3, Maintenance suggestions after renovation
Daily cleaning: Use neutral cleaning agents in combination with mops or floor scrubbers to avoid acidic cleaning agents.
Regular polishing: Perform a light polishing every six months to one year to maintain gloss.
Scratch resistant treatment: Add padding protection when handling heavy objects to avoid direct contact with metal sharp objects.
4, Frequently Asked Questions and Answers
Q: What if there is still color difference after renovation?
A: Perhaps the color of the repair agent does not match or the polishing is uneven, it needs to be repaired again and the polishing mesh should be standardized.
Q: Can I DIY renovate it?
A: Small areas can be attempted, but large-scale or deep renovation is recommended by a professional team with higher equipment and technical requirements.
Q: Is the renovation cost high?
A: About 30% -50% of the new installation cost, but it extends the service life and has a better cost-effectiveness than replacement.

Through scientific renovation, inorganic terrazzo can be rejuvenated, combining practicality and decoration. It is recommended to choose a renovation plan based on actual needs and consult the manufacturer or professional service provider if necessary.
