Cleaning & Maintenance

Concrete: This is the foundational layer, usually the existing floor or substrate on which the entire structure will be built. It provides stability and support for the layers above.

Interface Agent: The interface agent is applied onto the concrete to improve the bond between the concrete and subsequent layers. It ensures proper adhesion and helps prevent issues such as delamination.

Sub Base Layer: This layer serves as a transition between the concrete and the terrazzo system. It may consist of materials like a leveling compound or a specific underlayment that provides additional stability and helps achieve the desired height or surface profile.

Cement Mortar: The cement mortar layer is applied over the sub base. This layer might act as a bedding material that helps in setting the HPI STONE and provides a level surface for the final layer.

Surface Layer – HPI STONE: This is the topmost visible layer, made up of HPI STONE material. This layer is carefully laid, compacted, and then ground and polished to achieve the desired appearance.

Installation Steps

STEP 1: Plate pretreatment

Mixing: mixing the inorganic terrazzo special glue evenly
Roll coating: apply to the back of HPI stone with a roller or brush
Air Dry: leave to dry for 4-12 hours. Use after the surface is dry

STEP 2: Grass-roots treatment

The base must be firm, and keep clean, with no dirt, and no material to affect the adhesion exists.

STEP3: Prepare adhesive

Single component binder:
Please mix 20KG powder and 5KG water, pour into a clean empty barrel, and stir until no particles can be.
Two-component binder:
Please mix the emulsion and powder according to the predetermined proportion, pour into the clean empty barrel, stir until there are no particles, and let stand for 5-10 minutes.

STEP 4: Apply scraper adhesive

1. Apply a layer of adhesive to the base surface with a toothed spatula
2. Use a toothed spatula to scrape a layer of adhesive evenly on the back of the pretreated sheet.
Note: do not oversize the base surface area, avoid adhesive surface peeling after bonding, which affects the adhesion.

STEP 5: Method of placement

1. Put the coated and scraped HPI stone on the bonding layer, fully knead, press, and level.
2. Tap the surface with a rubber hammer for better contact with the binder and adjust the gap within 15 minutes.
Note: No washing or rain shall be allowed within 24 hours after application

STEP 6: Leave gaps & clean gaps

1. The width of the gap between the HPI stones is 1-1.5 mm, and the gap is cleaned with 1-1.5 mm separator and sponge in time
2. Longitudinal and transverse every 8-10 meters to set up 10 mm of structural expansion joints, leaving the seam depth to the base.

STP 7: Product protection

1. Early stage: soft carpet and plasterboard combination
2. Mid-late: the main flow of people using fireproofing board to replace gypsum board for protection
Note: At least 3 days after application.

The suitable temperature for construction is between 0-40°C. If the temperature is too high or too low, appropriate insulation measures should be taken.
Gaps of 1.5-2mm should be reserved between HPI stone pieces. For large area installations, expansion joints of 10mm are required every 8-10 meters horizontally and vertically. The joint depth should reach the base layer.
Mixed adhesive material should be used within the specified time frame (2 hours at 21°C recommended ). Unused or surface-filmed material should not be used. For two-component emulsions, dilution with water during use is not allowed.
The protective cushion layer should be joined as a whole to prevent cement and gravel from falling onto the surface of the HPI stone through gaps, causing contamination.
Within 3 days after tiling is completed, walking on the surface is prohibited. Within 7 days, activities such as transporting goods, setting up ladders, and bringing in heavy equipment that could cause cross-operations are strictly prohibited.
To ensure quality and effects, it is recommended to prioritize the use of two-component professional adhesives. If single-component adhesives are chosen, the rapid-drying product execution standard should be followed like JC/T547-2017 C2F standard in China.
If possible timely crystalline protection can be applied to extend service life.