White Opaque 40/7 white soap base, 12 kg

Bulk White Base Built for Consistent Batch Production

White Opaque 40/7 arrives in a 12 kg block, a format that immediately signals its role in workshops and small manufacturing lines that need reliable, repeatable results across many production runs. This dense, fully opaque base delivers a bright uniform white tone without extra whitening additives, making it a practical choice for studios scaling up from occasional projects to regular output. It belongs to the Melt and Pour Soap Bases category, where different formulations are grouped by texture, clarity and melting behavior, and this particular base stands out for its solid, opaque finish that hides embedded particles or uneven mixing lines.

The primary use of this base is crafting solid bar soap and decorative gift items through the melt and pour method, where a clean, dense white surface is essential for a polished final look. It holds fine details from molds well, cuts cleanly into bars, and takes stamping or embossing without cracking. When melting, warm the base gradually in a double boiler or microwave in short bursts, keeping the temperature around 60 to 70 degrees Celsius and avoiding a rolling boil, which introduces surface bubbles that are hard to remove later. Once liquid, fragrance or essential oils can be blended in at roughly 3 to 5 ml per 100 g of base, while carrier oils, botanical extracts, clays or dried herbs work well at up to 5 to 7 g per 100 g, stirred thoroughly to avoid clumping.

Colorants and mica pigments should be added once the mixture cools slightly to around 50 to 55 degrees, since higher temperatures can dull or shift the shade over time. Pour the finished liquid into silicone or plastic molds and let it set at room temperature for roughly 30 to 60 minutes before unmolding. For layered designs, lightly misting a set layer with isopropyl alcohol before pouring the next helps the layers bond properly instead of separating during use.

This base pairs well with translucent and semi-transparent formulations for contrast effects, such as embedding colored shapes inside a clear layer or building striped bars with alternating opacity. It works especially well alongside the same-size Opaque White 10/3 / Y - white soap base, 12 kg when a similar consistency is needed but with a slightly different melt profile for creative layering. For small test batches or trialing a new formula before committing to a full production run, the compact White Soap Base WST 1 kg is a convenient starting point, and once output grows toward industrial volumes, switching to a larger block like Soap base Specif Tempo White Base, 20 kg helps reduce cost per unit.

Store the base in a dry, cool space away from direct sunlight and temperature swings, sealed tightly to prevent moisture absorption, which can otherwise cause beads of condensation to form on finished bars, sometimes called sweating. A storage range of about 15 to 25 degrees Celsius is recommended. Under proper conditions the base retains its working properties for an extended period, which is useful for maintaining a steady stock supply on a production line with recurring output.

Citrus Charcoal Bar

White Opaque 40/7 - 500 g

Activated charcoal powder - 3 g

Sweet orange essential oil - 15 ml

Jojoba oil - 20 ml

Poppy seeds - 10 g