WSD-312 Water-Based Spray Demolding Agent
  • WSD-312 Water-Based Spray Demolding Agent

    Product Overview

    WSD-312 is a water-thinnable demolding solution tailor-made for silicone rubber forming. Formulated for spray application, this release medium creates a separating barrier once atomized onto mold surfaces. It facilitates clean, trouble-free part stripping after silicone vulcanization.

    WSD-312 is a zero-solvent, low-odor demolding fluid engineered for both solid silicone and liquid silicone rubber (LSR) compression and injection processes. It delivers steady release performance while leaving minimal surface residue on finished silicone components. Compatible with steel, aluminum and alloy tooling commonly used in silicone manufacturing.

    Core Attributes & Competitive Strengths

    ✔ Water-borne formula, free of harsh solvents, low odor to maintain a safer workshop environment 

    ✔ Wide dilution window: 1 part concentrate : 7 ~ 15 parts clean water, brings outstanding cost economy for mass production 

    ✔ Fine spray laydown, builds an ultra-slim, consistent separating film across mold cavities 

    ✔ Reliable release power, cuts down rejects caused by sticking, tearing and part distortion 

    ✔ Light residual film, does not obstruct downstream operations including pad printing, gluing and surface coating 

    ✔ Non-corrosive to molds, helps prolong the service life of your precision tooling 

    ✔ Consistent performance, no surface blooming, haze or white discoloration on molded silicone goods 

    ✔ Simple mold cleanup, less greasy buildup on tooling over long production runs

    Ideal Application Scenarios & End Products

    Suited for nearly all compression-molded and injection-molded silicone articles:

    • Food-contact silicone wares: baking liners, silicone utensils, cake moulds
    • Consumer silicone goods: protective sleeves, coasters, pacifiers, silicone toys
    • Industrial silicone hardware: sealing gaskets, rubber hoses, shock pads, custom profile parts
    • LSR liquid silicone components: medical silicone parts, smart watch straps, silicone keypads

    Step-by-Step Usage Guide

    1. Mix the WSD-312 concentrate with pure water within the dilution range 1:7 to 1:15. Tip: use 1:7 for intricate, undercut molds; shift to 1:12–1:15 for simple cavity designs. Adjust ratio according to silicone hardness and molding temperature.
    2. Agitate the mixture thoroughly before charging into your spray gun.
    3. Make sure mold cavities are fully cleaned and dried prior to spraying.
    4. Apply one thin, uniform coat. Over-spraying is not recommended.
    5. Let water content evaporate via natural air drying or gentle heating.
    6. Close the mold, load or inject silicone compound and proceed with vulcanization.
    7. Open mold and remove finished parts once curing cycle completes.

    Specifications & Packaging

    Model: WSD-312 Sample pack: 180g per bottle (as reference sample) Commercial bulk supply: 25kg plastic drum Shelf life: 12 months from manufacturing date Storage instruction: Keep container tightly sealed, store in cool shaded area, keep away from direct sunlight.

    What Benefits Will You Gain By Using WSD-312?

    ✅ Reduce production cost: High dilution factor lowers consumption compared with ready-to-use release sprays 

    ✅ Improve workplace conditions: Water carrier removes strong solvent fumes 

    ✅ Lower scrap rate: Greatly reduce defective parts from sticking and surface haze 

    ✅ Flexible post-processing: Molded silicone parts are ready for printing, bonding and secondary finishing 

    ✅ Less tool maintenance: Reduced grease accumulation means fewer mold cleaning cycles


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    • Hi, Winstar Silicone company, we are interested in your product silicone color masterbatch, could you please offer some free samples to us? Our company address: ***LA,USA
    • Hello Winstar, our product is compression molding product,could you advise which peroxide curing agent to use ?
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