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ORP 5377 HP:Hydrophobic Redispersible Powder for Dry-Mix Mortars. ORP 5377 HP is a redispersible powder produced by drying an emulsion of Vinyl Acetate / Vinyl Versatate copolymer with PVOH as protective colloid. The specific chemical composition of the polymer allows coalescence of the redispersed polymer at low temperatures and provides good adhesion to cementitious substrates.
ORP 5377 HP is used to modify mixtures containing hydraulic binders. Due to its particular chemical / physical composition, ORP 5377 HP improves adhesion, abrasion resistance,flexibility and water resistance of mortars containing hydraulic binders such as cement, gypsum or lime.
Especially for water repellency, abrasion resistance and mechanical performance tests after water immerison, ORP 5377 HP provides excellent performance.
TYPICAL PROPERTIES
Appearance: White powder
Chemical composition: VA/VV Copolymer
Stabilizing System: PVOH
Residual Humidity (%): Max. 2.0
Bulk Density (g/l):400 - 600
Ash Content (%): 12 ± 2
Alkali Resistance: High
After 1:1 Dispersion with Water
MFFT (°C):9 ±1
APPLICATION AREAS
Tile Grouts and Repair Mortars:
Having excellent adhesion properties, abrassion and water resistance, ORP 5377 HP can be used in tile grouts and repair mortar formulations, between 2.0 – 4.0 %.
ETICS (Exterior Thermal Insulation Coating Systems) Plasters: Because of providing excellent water resistance and compressive strength ORP 5377 HP can be used also in ETICS plaster formulations, between 3.0 – 5.0 %
PRODUCT HANDLING – STORAGE – SHELFLIFE
Packaging: Pallet with 18 paper bags, each 25 kg, also 500 or 1000 kg of big bags.
Packages must be stored in a dry and cool warehouse. Pallets must not be stacked on top of each other to avoid caking due to the thermoplasticity of the polymer.
Packing must be closed well after usage for protection against humidity and caking. It has to be used within 6 months after the date of delivery.
