Sistem Lantai Screed PU yang dapat meratakan sendiri JINYU PAINT® MF

Method Statement

Optimal Application Conditions & Temperature

The ideal application temperature for JINYU PAINT® MF is between 15-25℃. It is not recommended to apply MF when the temperature is below 5℃, as it will seriously affect its leveling ability and result in surface defects. When the temperature is below 10℃, it can also significantly affect the curing speed of the product. If it is necessary to apply MF under temperature conditions exceeding 30℃, sufficient preparation work is required.

Concrete Substrate Preparation Guide

The ideal foundation condition for JINYU PAINT® MF requires a concrete base strength of over 30MPa. However, C25 concrete flooring with high-standard finishing can still meet the construction requirements.

Grinding: JINYU PAINT® MF requires grinding for base treatment with a coarser diamond blade. For very hard surfaces like wear-resistant floors, it is still recommended to use a shot blasting machine for sandblasting treatment.

Grooving: Multiple grooving needs to be cut close to the wall edge, with a depth of 6-9mm, a width of 5-8mm. The central area needs to be cut in both horizontal and vertical directions, with a spacing of about 2 meters.

For very hard or dense surfaces, shot blasting is the recommended preparation method to ensure optimal adhesion.

Mixing Instructions for 3-Component System

Before mixing, shake Part A well and then pour Part A and Part B into the bucket at the same time. Use a low-speed mixer to mix for about 5 seconds. It is recommended to use an electric mixer with adjustable speed and high torque at low speed. Then slowly pour in Part C bagged aggregate and mix at high speed for 1.5-2 minutes until completely uniform. Solvent or other diluting agents should not be added during mixing, and adding water is strictly prohibited.
Note: Component C is a necessary component and must be added during stirring.

Rasio Pencampuran

Mixing all the raw materials from the complete set of factory packages

Application

Before scraping the primer, JINYU PAINT® MF requires pouring the material into the groove and scraping it flat.
Scratch Layer: Use a flat trowel or a 1mm serrated trowel to apply the coating according to the predetermined amount. During application, make sure to scrape it close to the ground and ensure the continuity of the coating to avoid any missed spots.

For concrete surfaces with low strength and flatness, it is recommended to apply two layers of scratch coat to achieve better sealing and flatness, which can improve the surface coating appearance.

Surface Layer: use a serrated rake or a 5mm serrated trowel for one-time spreading, with sufficient manpower to avoid joints. If the area is large, suitable isolation with decorative paper can be used in advance at the joint.
During the construction of surface coating, avoid direct sunlight and high temperatures, as they can affect the defoaming performance of the coating material and cause many air bubbles.

Expansion Joint: The existing expansion joints on the concrete floor should be marked before construction, and then cut again after the coating is completed, and filled with suitable elastic polyurethane joint sealant.

Pembersihan

Clean the tools immediately after application using solvents. Absorb any spilled materials with dry sand or other absorbent materials and wipe clean with a cloth.

Theoretical Consumption (4mm)