Sponge Gel Formulation and Dissolution Issues
Question
I am encountering issues with my Sponge Gel formulation. I dispersed 1% Sponge Gel in 2% glycerin, then added water to a total of 100g. The resulting texture is thin, lacks viscosity, and separates into water and a solid-like phase when left standing.
If I want the texture to be thicker and more viscous, should I increase the concentration or use a different solvent?
Answer
Sponge Gel Dissolution Issue
The issue with your Sponge Gel formulation likely stems from the mixing method rather than the concentration or solvent choice. Sponge Gel (Sodium Acrylate Crosspolymer) is designed to be dispersed directly in water to properly hydrate and form a gel structure.
Recommended Mixing Method:
- Disperse the required amount of Sponge Gel directly into the water phase of your formulation.
- Use a blender or stir the mixture for at least 3 minutes to ensure the powder is fully dispersed and begins to hydrate.
- Allow the mixture to sit for approximately 30 minutes for the gel to fully form and reach its intended viscosity.
- Ingredients like glycerin should typically be added after the Sponge Gel has been properly dispersed and the gel structure has started to form in the water phase.
Your current concentration of 1% Sponge Gel is generally sufficient for creating a viscous gel in a simple water-based system, according to the product's description. Dispersing it in glycerin first may prevent it from hydrating correctly when water is added, leading to the thin texture and separation you observed.
Try adjusting your mixing procedure to disperse Sponge Gel directly into the water first. If you still find the viscosity insufficient after using the correct method, you could then consider slightly increasing the concentration within the recommended range (up to 5%).
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