Rita Chen

Container loading on June 1, 2023.

HPMC and RDP in 1*40HC.

Thanks to our customer for his trust and support.

PVA (Polyvinyl Alcohol)

PVA is a water-soluble, high molecular polymer with many uses. It has unique strong adhesion, film flexibility, smoothness, oil resistance, solvent resistance, protective colloid properties, gas barrier properties, abrasion resistance and water resistance.

The polyvinyl alcohol powder and other powdered ingredients are fully dispersed through dry mixing and then dissolved with water. At this time, PVA can dissolve without condensing.

It can be used in conjunction with cellulose ethers to improve the flexibility, water retention, viscosity of building materials and glue. To prevent the cracking, shedding and increase the adhesion strength and smoothness of the coating.

Type:

PVA0588, Viscosity 4.6~6, mesh 120, granular

PVA1788, Viscosity 20~26.5, mesh 120, powder or granular

PVA 2488, Viscosity 25~53, mesh 80~160, powder or granular

PVA1799, Viscosity 23~29, granular

Polyvinyl Alcohol as additives is used in cement-based products and glue. Such as cement mortar, thermal insulation mortar, anti-cracking mortar, wall putty powder, paints, construction glue, adhesive etc.

Redispersible Latex Powder

Synonyms: RDP-VAE, RDP, VAE, Ethylene-vinyl Acetate Copolymer, Vinyl Acetate-ethylene, Redispersible Polymer Powder, Copolymer Redispersible Emulsion Powder, Ethylene-vinyl Acetate Copolymer

It is water-soluble redispersible powders, which is divided into ethylene/vinyl acetate copolymer, vinyl acetate/vinyl tertiary carbonate copolymer, acrylic acid copolymer, powders etc. bonded after spray drying. It uses polyvinyl alcohol as a protective colloid. This kind of powder can be quickly dispersed into emulsion after contacting with water. Because redispersible latex powder has high bonding ability and unique properties, such as: water resistance, construction and heat insulation etc., its scope of application is extremely wide.

Application fields: Inside and outside wall putty, floor self-leveling, cement-based plastering mortar, crack filler, cement mortar, tile adhesive, skim coat, joint filler, masonry mortar, cement based plasters, external thermal insulation composite system (ETICS), external insulation and finish systems (EIFS) etc.

It can improve film forming, flexibility, bonding strength, deformability, compressive strength, flexural strength, resistance to abrasion, toughness, adhesion and water retention capacity.

The function of lightweight plastering plaster/ lightweight stucco plaster is mainly to prevent the water from being absorbed by the wall when the plaster stays in the wall. This is very obvious in the lightweight walls such as bricks, aerated concrete walls and porous insulation boards. The lack of water in the plaster will cause incomplete hydration, causing the plaster to separate from the lightweight walls and the shell to fall off. This is the common wall hollowing and shedding in the construction of lightweight plastering plaster/ lightweight stucco plaster. HPMC can maintain the water contained in the plaster, ensure the hydration reaction of the slurry at the interface thus ensure the bonding strength.

Hydroxypropyl methyl cellulose (HPMC) is a non-ionic cellulose ether obtained by cellulose alkalization, etherification, neutralization and washing.

HPMC has properties of good water retention, thickening, dispersing, emulsifying, film-forming etc. It is the first choice additives for production of high quality building materials .

In building materials, the addition amount of HPMC is very low, only 0.1%-5%, but it plays an irreplaceable role and can significantly improve the water retention, fluidity and lubricity of building materials. Building materials added with HPMC are easier to mix and use.

So HPMC improves the work efficiency of construction workers, extends the open time, improves the bonding strength and forms a smooth and delicate surface coating.

HPMC additives applies in plaster

HPMC helps building materials apply more easily and perform better. HPMC makes the plaster smooth, not sticking to bars, not sticking to knives.

HPMC can improve the crack resistance of plaster. It reduces plastic shrinkage and increases crystal expansion rate.

HPMC can improve the fall resistance of plaster. It makes plaster don't sag and don't fall from 3cm to 5cm.

HPMC can improve the pumpability of plaster. The spraying is smooth, uniform and sufficient.

HPMC has super adhesiveness. To prevent wall hollowing and shedding in the construction of plaster.

HPMC can be applied in many kinds of plaster. For example, add 1KG in 1000KGS of lightweight plaster. Add 0.5KG in 1000KGS of heavy plaster.

HPMC（Hydroxy Propyl Methyl Cellulose）is a water-soluble, non-ionic cellulose ether that offers a variety of functional properties when dissolved in water. With excellent properties such as water retention, thickening, adhesion, dispersion, suspension, surface activity and film formation.

Instant HPMC is used in laundry detergent and glue. Added amount 3kgs ~5kgs per 1000kgs.