Formlastic 48 耐高温聚氨酯

Formlastic 48 耐高温聚氨酯

Formlastic 48为用于生产混凝土浇筑产品的耐用聚氨酯橡胶。产品具有黏度低的特点,易于混合和浇筑。橡胶固化后气泡最少。体积混合比为1A:1B,操作时间25分钟,固化时间24小时。橡胶固化后最终邵氏硬度为48A。固化后的橡胶尺寸稳定(低收缩),具有良好的耐磨性并提供浇筑颜色精确混凝土浇筑产品。

特征

说明

START BY PREPARING YOUR MODEL...

Preparation - Store and use at room temperature (73°F/23°C). These products have a limited shelf life and should be used as soon as possible. Environmental humidity should be as low as possible. Good ventilation (room size) is essential. Wear safety glasses, long sleeves and rubber gloves to minimize contamination risk.
Some Materials Must Be Sealed - Models with porous surfaces (gypsum plasters, concrete, wood, stone, etc.) must be sealed prior to applying a release agent. Sonite™ Wax (available from Smooth-On distributors) is a proven sealer for porous surfaces.

Non-Porous Surfaces - Metal, glass, hard plastics, sulfur free clays, etc. require only a release agent.

Applying A Release Agent - Use a release agent made specifically for mold making (Universal™ Mold Release available from Smooth-On distributors). A liberal coat of release agent should be applied onto all surfaces that will contact the rubber.

IMPORTANT: To ensure thorough coverage, lightly brush the release agent with a soft brush over all surfaces of the model. Follow with a light mist coating and let the release agent dry for 30 minutes. Because no two applications are quite the same, a small test application to determine suitability for your project is recommended if performance of this material is in question.

MEASURING & MIXING...
Liquid urethanes are moisture sensitive and will absorb atmospheric moisture. Mixing tools and containers should be clean and made of metal or plastic. Materials should be stored and used in a warm environment (73°F/23°C).
Important; Pre-Mix Part B Before Using. Using a flat edge paddle or a drill mixer, scrape sides and bottom of container several times.

POURING...
For best results, pour your mixture in a single spot at the lowest point of the containment field. Let the rubber seek its level up and over the model. A uniform flow will help minimize entrapped air. The liquid rubber should level off at least 1/2” (1.3 cm) over the highest point of the model surface.

CURING & PERFORMANCE...
Curing - Allow rubber to cure a minimum of 24 hours at room temperature (73°F/23°C) before using. Cure time can be reduced with mild heat or by adding Smooth-On Kick-It™ Cure Accelerator. Do not cure rubber where temperature is less than 65°F/18°C.
Post Curing - Optional . . . Following a 24 hour cure, heating the rubber to 150°F (65°C) for 4 to 8 hours will increase physical properties and performance.
Using The Mold - A release agent should be applied to the mold before each casting. Aquacon™ Water Based Release Agent (available from Smooth-On distributors) is recommended for releasing abrasive materials like concrete.
Performance & Storage - Fully cured rubber is tough, durable and will perform if properly used and stored. Molds should be stored on a level surface at room temperature in a dry environment. Do not stack molds, expose them to moisture or UV light for prolonged periods.

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