Qicai Bangyuan

Characteristics and construction points of polymer bonded mortar

Release time:

2023-05-22 17:10

Many customers do not have a special understanding of the characteristics and construction points of polymer bonded mortar. In this issue, Shandong polymer bonded mortar manufacturer will come to chat with you about the characteristics of our products.
1、 Product Introduction:
Polymer bonded mortar is a polymer reinforced cement-based pre prepared dry mixed flexible bonded mortar. It is made by mixing cement, quartz sand, German imported redispersible rubber powder with various additives. Compared with mortar mixed with traditional building adhesive, it has excellent flexibility and bonding performance, as well as good resistance to sagging, water retention, water resistance, and simple and convenient operability. It enhances the bonding strength between the substrate and insulation board, enhances tensile strength, and prevents hollowing. Directly adding water is convenient for construction, easy to operate, and highly efficient.
2、 Product application:
Suitable for bonding EPS polystyrene insulation board, XPS polystyrene extruded board, concrete, brick blocks, and aerated blocks in external and internal insulation systems. It is also suitable for pasting tiles on insulation walls with high shrinkage rates, and for pasting thin marble, gypsum board, and other materials with smooth surfaces.
3、 Reference dosage:
3-5 kg/㎡
4、 Key points of construction:
1. Basic treatment: It is required to be flat, sturdy, clean, and dry. The concrete residue, release agent, and curing agent on the wall must be cleaned up. The parts with poor flatness on the wall should be chiseled or repaired, and the loose areas on the surface must be removed. The newly plastered base layer must be hardened and dried before construction.
2. Preparation of bonding mortar: Polymer bonding mortar: Add water in a ratio of 4:1 (weight ratio) (this is the reference ratio) and mix thoroughly with an electric mixer. Let it stand for 5-10 minutes and mix again before use. The mixed mortar should be used up within 2 hours. It is strictly prohibited to mix the solidified mortar again before putting it into use.
3. Paste polystyrene board or extruded board: When using the dot frame method for bonding, the bonding area should not be less than 30% for exterior coatings, and not less than 50% for exterior tiles.
(1) Strip bonding method: First, use a toothed trowel to evenly apply the mixed bonding mortar to the polystyrene board or extruded board, and then use a toothed trowel to comb out strip patterns on the bonding mortar. Paste the insulation board onto the wall, gently and evenly press the board surface to make it firmly bonded, and check the flatness and verticality at any time with a 2m ruler. When sticking the board, pay attention to removing the mortar that overflows from the board edge, so that there is no dust between the boards.
(2) Dot box method; Use a trowel to evenly apply the mixed bonding mortar to the edge of the insulation board to form a frame, and then evenly distribute 6 or 8 bonding points higher than the frame on the board surface. Finally, use the above method to stick the polystyrene board or extruded board to the wall and level it with a ruler.
(3) When using mechanical anchors to fix polystyrene board or extruded board, the installation of the anchors should be at least 3 days after the use of the bonding mortar.
4. Attention: The construction temperature is above 5 ℃; It is strictly prohibited to add sand, cement, and other additives without permission; It is recommended to use antifreeze type below 0 ℃ (winter construction is not recommended to ensure the stability of the entire system); The mixed mortar should be used up within 2 hours, and the hardened mortar should not be reused; Storage and transportation should be moisture-proof and rainproof.
Shandong Bangyuan New Building Materials Co., Ltd., located at No. 17 Kunming Road, Linyi Economic Development Zone, is a comprehensive enterprise integrating research, development, production and sales of building materials. We have modern production bases and numerous stable engineering partners in China. The company relies on leading domestic production equipment and a professional research and development team to continuously develop various high-quality new environmentally friendly building materials. The main products include molded polystyrene board, graphite polystyrene board, lost foam, polymer bonded mortar, polymer plastering mortar, adhesive powder particle slurry, lightweight machine sprayed plaster gypsum, alkali resistant mesh cloth and other new building materials products. Shandong Bangyuan Decoration Engineering Co., Ltd. is a professional engineering company mainly engaged in the research and development and construction of various external wall insulation systems.

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