S. No. Particulars Parameters Unit Test Result
1 Initial Setting Time 5-9 Minutes 6-8
2 Final Setting Time 12-16 Minutes 16-18
3 Colour White Brightness 98.5%
4 Dry Bulk Density 770kg /m3. Max KG / m3 685-710
5 Compressive Strength 15-17 N/mm2 15.5
6 Fineness 200 Mesh Pass 96% % 99% (Percent)
7 Sulphur Anhydride So3 Not Less Than 35% % 51.41%
8 Calcium Oxide Ca0 Not Less Than 2/3 of So3 % 37.17%
9 Approximate Coverage per bag on 12mm Thickness Square Feet 18-20 Square Feet

Cement Vs Gypsum – Comparison

Cement Gypsum
Risks involved as sand and cement is to be mixed and processed at the site. The plaster is a ready mix of gypsum. Hence saves effort and time in a big scale.
Sand is used as an aggregate. As Exfoliated Vermiculite is the aggregate, it reduces heat. [good thermal insulator].
Rough finish and water patch marks occur. Smooth fine finish with no water patch marks.
Requires POP punning for surface finish after sand-cement plaster. Smooth finish is obtained in single application itself.
Setting time : 60 – 160 mins Setting time : 20 mins
Water cracks or shrinkage cracks may happen. Provides crack free smooth surface, once set.
High labour cost and consumes time. Time saving, hence less labour cost comparatively.
Structural changes can happen according to heat variation. Gypsum is Heat resistant so no damage occurs.
Cemented Surface will crack apart and burst when hit by a hard object. Gypsum Plaster will only form a dent when hit by a hard object and will be safe.
“Re work, fittings, refinishing” all are quite difficult in cement walls. Gypsum walls are easily maintainable.
Cement surfaces are catalysts to fire. Gypsum protects your walls from direct fire.
More electricity usage as AC is used inside cement walls. Due to low thermal conductivity of gypsum, AC usage will be less and hence low electricity bills.
Direct Application Line & Level Smooth Finish Time Saving Quality Assurance Water Curing Shrinkage Cracks
Cement Plaster
Gypsum Does not require Do not appear