ACT Australia
ACT SCR-100 Engineered Screed 20kg
- Regular price
- $15.70 AUD
- Sale price
- $15.70 AUD
- Regular price
-
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- Pre-blended manufacture provides a consistent alternative to site-batched sand and cement screeds.
- The one-component powder mixes with water for straightforward on-site preparation.
- A 10–100 mm application range supports both thin and thick screed-bed construction.
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Overview & Features
- Mixes with approximately 2.2 L of clean drinking water per 20 kg bag.
- Mandatory wet slurry bond coat over prepared concrete substrates.
- Covers approximately 1 m² per bag at 10 mm thickness.
- Can be tiled after a minimum 24 hours at 23°C, subject to thickness and site conditions.
- Suitable for thin- and thick-bed screed applications.
- Excellent workability for manual placing, compacting and ruling.
- ACT AD-1 may be used as specified to improve compressive strength, flexibility and adhesion.
- Grey powder with VOC below 1 g/L according to the supplied SDS.
- Shelf life up to 12 months in unopened original packaging under the stated storage conditions.
Application Guide
- 1. Confirm the substrate is sound, fully cured where concrete, clean and dry, and free of dust, wax, oil, grease, laitance, curing compounds, paint, coatings and other bond-inhibiting contamination.
- 2. Concrete slabs must be at least 28 days old and sufficiently absorptive. Prime impervious or non-porous substrates with ACT PR-1 as specified in the current PDS.
- 3. Install a mandatory slurry bond coat over prepared concrete. Either dilute ACT AD-1 with clean water 1:1 and mix with Portland cement, or mix ACT ADH-55 with clean water to a slurry consistency.
- 4. Brush the selected slurry thoroughly into the substrate using a stiff broom.
- 5. Measure approximately 2.2 L of clean drinking water per 20 kg bag. Slowly add SCR-100 powder and mechanically mix with a suitable drill and paddle to a consistent blend.
- 6. Place SCR-100 over the slurry coat while the slurry remains wet. Do not leave the mixed screed standing in the bucket.
- 7. Compact and rule the screed with a straight edge to the specified falls, levels and thickness between 10 mm and 100 mm.
- 8. Incorporate movement joints in accordance with the current project requirements and the PDS reference to AS 3958.1-2007. Treat post-tensioned slabs as flexible substrates.
- 9. Use appropriate reinforcing mesh where the screed thickness exceeds 70 mm.
- 10. Allow a minimum 24 hours at 23°C before tiling. Extend curing where required for greater thickness, lower temperature, higher humidity or other site conditions. Clean tools with water while material remains wet.
Specifications & Standards
- Pre-blended grey cementitious powder supplied in a 20 kg bag. Mix one bag with approximately 2.2 L of clean drinking water and apply from 10–100 mm. Coverage is approximately 1 m² per bag at 10 mm thickness. Allow a minimum 24 hours at 23°C before tiling, noting that drying varies with screed thickness and site conditions. Application temperature is 5–35°C. VOC is below 1 g/L according to the supplied SDS. Shelf life is up to 12 months in unopened original packaging stored cool, dry and off the floor.
Product Documents
Applications
Bathroom
Shower
Laundry
Balcony
Under Tile
Technical Specifications
Key technical properties of this product. Refer to the Technical Data Sheet for complete installation and performance information.
| Classification | Pre-blended high-strength cementitious screed mixture |
|---|---|
| Mixing Ratio | 20 kg powder to approx. 2.2 L clean drinking water |
| Coverage | 1 m² per 20 kg bag at 10 mm thickness |
| Suitable Substrates | Fully cured absorptive concrete slabs; impervious or non-porous substrates require ACT PR-1 as stated in the PDS |
| Internal / External Use | Internal and external; domestic and commercial |
| Movement Joints | Incorporate in accordance with the PDS reference to AS 3958.1-2007 |
| Thick-Bed Reinforcement | Use appropriate reinforcing mesh above 70 mm thickness |
Need Technical Advice?
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