Thin Bed Ready Mix Plaster | 13.2 MPa | 40kg

Name: Ready Mix Plaster — Thin Bed
Brand: SilicaMix
SKU: ready-mix-plaster-thin-bed
Availability: InStock

Technical Specifications

Ready Mix Plaster — Thin Bed at a glance

Full published specification. No gated download, no email request — the numbers your engineer needs are on this page.

Property	Value
Compressive Strength (28 days)	13.2 MPa
Pull-Off Adhesion (28 days)	1.5 MPa
Cement : Sand Ratio	1 : 3 (43-grade OPC)
Max. Aggregate Size	2.2 mm
Coverage	15 sq.ft per 40 kg bag @ 12 mm
Water Demand	6 litres per 40 kg bag (15% w/w)
Pot Life	1 – 1.5 hours
Initial / Final Setting Time	60 min / 360 min
Water Retention	97 – 98%
Dry Bulk Density	1700 – 1800 kg/m³
Rebound Losses	Very minimal
Packaging	40 kg HDPE laminated waterproof bag
Shelf Life	9 months from date of sealed packaging
Standards Referenced	EN 998, IS 2250–1981, IS 1542

Values are typical and determined under standard laboratory conditions. Site results vary with substrate, ambient temperature and workmanship. Figures are from SilicaMix in-house laboratory testing. Download the technical data sheet for full test methods and referenced standards.

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Factory-direct supply across Bangalore, Mangalore, Udupi, Mysore and all of Karnataka.

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Bulk and project pricing available. Free sample delivered to your site on request.

Where It Is Used

Applications

Typical use cases where this product is specified on site.

Internal plastering over AAC block partition and infill walls
Smooth concrete and shuttered RCC surfaces requiring minimal levelling
Projects where AAC blockwork is laid to tight tolerance
Skim coat over previously plastered surfaces requiring refinishing

Application Guidance

How to use Ready Mix Plaster — Thin Bed

Follow this sequence for consistent results. Deviating on water ratio or open time is the most common cause of on-site failure.

1

Check the substrate

Thin Bed only works over a true, plane surface. Confirm AAC blockwork is laid level with tight joints — it cannot correct out-of-plane masonry.

2

Prepare

Clean and lightly dampen the block surface. AAC is highly absorbent; do not let it drink the mix water.

3

Mix

Add 6 litres of clean water per 40 kg bag (15% by weight) and mix mechanically for 3–5 minutes to a uniform, lump-free consistency. Allow to stand 5 minutes, then remix briefly. Do not re-temper with extra water once it stiffens.

4

Apply

Apply in a 3–6 mm layer. Level and float to a smooth finish ready for putty.

Common Questions

Frequently asked questions

The questions contractors and site engineers ask us most about this product.

What is the compressive strength?

13.2 MPa at 28 days with pull-off adhesion of 1.5 MPa — the highest adhesion figure in our plaster range.

How much water per bag?

6 litres of clean water per 40 kg bag, which is 15% by weight.

What coverage should I plan for?

15 sq.ft per 40 kg bag at 12 mm on a reasonably even substrate.

Why is rebound loss important?

Rebound is material that falls off during application and is wasted. This mix is formulated for very minimal rebound, which reduces both material cost and site cleanup.

What is the maximum aggregate size?

2.2 mm, which is among the finest in the industry and is what gives the mix its smooth finish.

What is the shelf life?

9 months from date of originally sealed packaging, stored cool and dry.