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Smooth-Cast 45D /0,95 kg

La gamme semi-rigide Smooth-Cast™ de résines de coulée d'uréthane semi-rigides à faible coût durcit rapidement en plastiques semi-rigides qui offrent une résistance et une résistance aux chocs exceptionnelles. Nouvelles formulations - Nouveau look ! Smooth-Cast™ 45D est nouvellement reformulé avec un aspect blanc translucide et des propriétés physiques améliorées. Tous les semi-rigides Smooth-Cast sont désormais sans mercure et sans phtalate.

Ces plastiques sont faciles à utiliser (le rapport de mélange est de 1A:1B en volume) et ont de faibles viscosités pour un piégeage minimal des bulles. Des couleurs éclatantes sont possibles en ajoutant des colorants SO-Strong™, UVO™ ou Ignite™.

Ces plastiques semi-rigides sont parfaits pour fabriquer des prototypes résistants aux chocs, des modèles, des jouets, des accessoires, des prises d'escalade, etc.

Rapport de mélange en volume 1A:1B - Rapport de mélange en poids 100A:93B - Durée de vie en pot 5 minutes - Temps de durcissement 30 minutes Dureté Shore 45 D- Couleur Blanc translucide

30,12 EUR

incl. 21% TVA, sans transport Versand
Poids: 1.2 kg
set (A+B)


Instructions

Safety - Materials should be stored and used in a warm environment 23°C. These products have a limited shelf life and should be used as soon as possible. All liquid urethanes are moisture sensitive and will absorb atmospheric moisture. Mixing tools and containers should be clean and made of metal, glass or plastic.

Mixing should be done in a well-ventilated area. Wear safety glasses, long sleeves and rubber gloves to minimize contamination risk.

Applying A Release Agent - A release agent is necessary to facilitate demolding when casting into or over most surfaces. Use a release agent made specifically for mold making (Universal™ Mold Release or Mann’s Ease Release™ 200 available from Form X). A liberal coat of release agent should be applied onto all surfaces that will contact the plastic.

IMPORTANT: To ensure thorough coverage, apply release and brush with a soft brush over all surfaces. Follow with a light mist coating and let the release agent dry for 30 minutes. Smooth-On silicone rubber molds usually do not require a release agent unless casting silicone into the mold. Applying a release agent will prolong the life of the mold.

MEASURING & MIXING...

Liquid urethanes are moisture sensitive and will absorb atmospheric moisture. Mixing tools and containers should be clean and made of metal, glass or plastic. Materials should be stored and used in a warm environment

The components (Parts A and B) should be at room temperature 23°C. Combine equal amounts of Parts A & B by volume in a mixing container. Make sure that you scrape the bottom and sides of your container several times. Do not delay between mixing and pouring. Also, the higher the mass concentration, the faster the material gels and cures.

IMPORTANT: Shelf life of product is reduced after opening. Remaining product should be used as soon as possible. Immediately replacing the lids on both containers after dispensing product will help prolong the shelf life of the unused product. XTEND-IT™ Dry Gas Blanket (available from Smooth-On) will significantly prolong the shelf life of unused liquid urethane products.

Pouring - For best results, pour your mixture in a single spot at the lowest point of the containment field and let the mixture seek its level. This will help minimize air entrapment.

For Best Results - Best results are obtained using a pressure casting technique. After pouring the mixed compound, the entire casting assembly (mold, dam structure, etc.) is placed in a pressure chamber and subjected to 60 PSI (4.2 kg/cm2) air pressure for the full cure time of the material.

Curing - Important: Use this product with at least room size ventilation or in proximity to a forced outlet air vent and do not inhale/breath fumes. Fumes, which may be visible with a significant mass concentration, will quickly dissipate with adequate ventilation. Castings with significant mass may be hot to the touch and irritate skin immediately following cure. Let casting cool to room temperature before handling.

Demold time of the finished casting depends on mass and mold configuration. Low mass or thin-walled castings will take longer to cure than castings with higher mass concentration.

If making rotational or hollow castings, backfilling with a rigid foam (Foam-iT! 5 or other) will provide lightweight reinforcement. Foam backfilling is recommended if castings will be subjected to temperatures above 85°F / 30°C.

Performance - Cured castings are semi-rigid and impact resistant. They resist moisture, mild heat, solvents (intermittent contact) and can be primed/painted or bonded to other surfaces (any release agent must be removed) using Urebond or similar flexible adhesive. If machining material, wear breathing protection. Unpainted castings may discolor in proportion to duration and intensity of exposure to UV light.

If suitability of any Smooth-On material is in question for your application, a small scale test is recommended before using for an important project.

Because no two applications are quite the same, a small test application to determine suitability is recommended if performance of this material is in question.

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