Ronacrete Ronascreed Fast Dry Prompt

Description

Ronacrete Ronascreed Fast Dry Prompt

Ronacrete Ronascreed Fast Dry Prompt is a fast drying additive for site batched screeds used to reduce the retained moisture within the screed quickly. Consequently you can lay floor coverings over the screed much sooner than conventional screeds.

RonaScreed FastDry Prompt gains strength quickly. As a result, this allows early access by following trades. When you are drying screeds using RonaScreed, FastDry Prompt, they will be influenced by the heat generated during curing.

This will mean drying of thicker screeds is faster per mm of screed thickness. Screeds installed at 50mm can accept moisture-sensitive floor coverings after only 4 days, while 75mm and 100mm can accept the same coverings after only 6 days.

With RonaScreed Fast Drying Additive for Site Batched Screeds, screeds can lay screed either bonded, unbonded or floating, determined by the substrate type. Consequently, bonded screeds must be laid onto a suitably prepared substrate (concrete slabs or existing screed). Unbonded screeds are those laid on a separating layer or preformed damp-proof membrane. Floating screeds are those laid onto an insulation board or acoustic layer.

Drying

The drying speed of RonaScreed FastDry Prompt means that underfloor heating systems are commissioned or de-humidifiers used after only two days at 75mm and 100mm thickness at 20°C and 60-65% air humidity.

The data is based on drying at 20°C and 65% relative humidity. Low temperature, high humidity, increased screed thickness and changing the mix design will delay drying. Another key point is that when your screen is covered with a curing membrane such as polythene, the drying time starts  when the membrane is removed.

Summary

• Lay floors over 50mm screeds after 4 days
• Lay floors over 75mm screeds after 6 days
• Lay floors over 100mm screeds after 6 days
• Open to foot traffic the next day
• Early commissioning of underfloor heating
• Liquid additive

Important 

Using a hygrometer to measure the relative humidity (RH) at the screed’s surface before laying floor coverings is standard practice.

Storage

The shelf life in sealed containers is 9 months. Store in a cool, dry place and protect it from frost.

Not quite what you’re looking for?

Browse more of our Ronacrete range.

See the range of Ronacrete Projects.