Terrafine Gypsum Plaster

Composition and Production

  • Base Material: Produced from calcined raw gypsum (which is heated to remove water content), resulting in a fine white powder, commonly referred to as Plaster of Paris (POP).
  • Mechanism: When mixed with water, it forms a fast-setting paste for surface application.
  • Process Simplification: It replaces the traditional multi-step plastering process (using cement, sand, and water) with a single, simple application.
  • Variants: There are different variants, such as Terrafine HDMR Gypsum Plaster, which is noted for being High-Density and Moisture-Resistant.

Core Features & Benefits

  • Superior Smooth Finish: Provides a mirror-like, flawless surface that is ready for painting or wallpapering without the need for an additional putty coat.
  • Single-Coat Application: Replaces the multi-step process of traditional plastering, cement render, and putty, simplifying the construction process and saving time and labor.
  • Quick Setting Time: Typically sets quickly (often within 30 minutes), significantly accelerating project completion compared to cement plaster, which can take up to 21 days to dry and cure.
  • No Curing Required: Eliminates the need for water curing, saving significant water resources and reducing labor.
  • Crack Resistance: Formulated to resist shrinkage cracks, leading to a more durable and aesthetically pleasing long-term finish.
  • Fire Resistance: Gypsum contains crystallized water which releases as steam when exposed to fire, effectively slowing the spread of flames and enhancing building safety.
  • Thermal and Acoustic Insulation: Offers good thermal insulation, which can help in reducing energy consumption for heating and cooling. It also has sound-absorbing properties for improved acoustic comfort.
  • Lightweight: Being a lightweight material, it does not add significant structural load to the building.
  • Eco-Friendly: Produced from natural gypsum, a sustainable resource, and often adheres to Green Building Rating System (LEED/IGBC) standards.

Product Specifications & Application

Specification Details
Material Calcined Raw Gypsum with additives
Usage/Application Interior Walls and Ceilings
Replacement for Cement, Sand, and Water Plastering; often replaces wall putty
Setting Time (Initial) Typically 11–15 minutes
Setting Time (Final) Typically 24–30 minutes (ready for next coat/finish)
Recommended Thickness Generally 10–12 mm
Typical Coverage Approximately 20–25 sq. ft. per 25 kg bag at 12mm thickness (Varies based on substrate and application)
Packaging Size Commonly available in 25 Kg bags
Special Variants HDMR (High-Density Moisture-Resistant) may be available for enhanced durability and moisture resistance in certain areas (though gypsum plaster is generally not recommended for wet or exterior areas).

Important Considerations

  • Interior Use Only: Like most gypsum plasters, Terrafine is generally not recommended for exterior walls or areas with constant exposure to water, such as bathrooms, washrooms, or wet kitchens, as water can weaken the material.
  • Application: The surface must be clean, dry, and free from dust and loose particles before application. Proper mixing ratio with water is essential for optimal consistency and setting time.