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Extratime Plaster Retarder | Slows Setting Time for Large Areas | SB Building Supplies

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£2.50 + VAT

Extratime Plaster Retarder is a simple and reliable additive that slows the setting time of finishing plaster, giving you extra working time for larger areas or complex projects.

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Extratime Plaster Retarder is a specially formulated additive designed to extend the working time of all gypsum-based finishing plasters. Ideal for large areas, detailed work, or warmer conditions, it provides greater flexibility and reduces waste by preventing plaster from setting too quickly.

By adding Extratime to your plaster mix, you gain up to 60 minutes of additional working time, allowing for smoother, more consistent results on every job.

Key Features & Benefits:

  • Slows plaster setting time by up to 60 minutes

  • Ideal for large surfaces and complex detailing

  • Prevents premature setting in warm conditions

  • Easy to use – simply mix with water before adding plaster

  • Suitable for all gypsum-based finishing plasters

  • Helps reduce waste and improve finish quality

🧱 Perfect For:

  • Large walls and ceilings

  • Multi-room projects

  • Decorative plastering and detailed work

⚙️ Application: Add directly to the mixing water before blending with plaster powder. Always follow manufacturer’s guidelines for accurate dosage.

Extratime Plaster Retarder | Slows Setting Time for Large Areas | SB Building SuppliesExtratime Plaster Retarder | Slows Setting Time for Large Areas | SB Building Supplies
£2.50 + VAT
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