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Technical Section

This section contains the MSDS sheets, Analysis sheets and more.  Plus information about our products and the cosmetic world.

What is Rubbing Alcohol?

Monday, 2 January 2017 11:32

One of the most common questions we are asked is "What is Rubbing Alcohol?"  The phrase usually seen on websites and in books is to "spritz your melted soap with rubbing alcohol" to get rid of the bubbles.

You know the problem -  the soap base has melted and maybe you've over stirred it a bit and there are some bubbles that won't go away.  Or you've poured your molten soap into the mould and bubbles sit on the top.

In the UK, rubbing alcohol is known as Isopropyl Alcohol.  It is a clear liquid which you can purchase directly from us.

In the world of melt and pour soap, it is an invaluable tool for making the bubbles disappear by a quick spritz using a mist spray.

The Isopropyl Alcohol works by changing the surface tension of any bubbles so that they pop.  It is colourless and volatile so the slight odour evaporates extremely quickly.

BIG Warning  - it is highly flammable so needs to be treated with care.

Colours - pigments or dyes?

Monday, 2 January 2017 11:35

We sell both Water Based Dyes and Liquid Pigments and we are often asked which is the best to use.

Water based dyes are ideal for both melt and pour soap bases and bath bombs.  They are water soluble and work well in both clear and opaque bases.

However, they will bleed.  By this we mean if two different coloured soap bases are next to each other in stripes or layers for example, the colours will merge and mix over time.  If you are looking to make soap in layers then do consider the use of pigments instead.

We recommend that only dyes are used in bath products (salts, bombs) as this will avoid any staining of the bath.

Pigments are also suitable for melt and pour soap bases but are really only suitable for opaque bases.  If you use a pigment in a clear base the result will be hazy and give a grainy appearance.  Pigments are supplied in liquid form and so you should shake the bottle before use to ensure all the colour has not sunk to the bottom.  We do not recommend their use in bath products such as salts or bombs because the tiny bits of colour will stick in any scratches in the bath and possibly stain it.

Both are supplied in a concentrated form and can be further diluted with deionised water if required.   You can always add more colour but you cannot take it away!

Using colours in salts can also give varying results in that the colour may not be as expected.  Please do test first before launching any large scale manufacturing to ensure you will get the required end result.  Test test test and test again is always the best advice.

Using Titanium Dioxide

Monday, 2 January 2017 11:36

Titanium Dioxide is the ingredient that turns a clear soap base into an opaque soap base.

It comes in powder form with the look and texture of flour.  It is also known by the Colour Index number of CI 77891or Pigment White 6.

So how do you add it to melt and pour soap?  Firstly do not add it directly as a powder - it will clump and lump and not disperse in to the soap base well.

It is best to mix it with either water or vegetable glycerine to make a paste before adding to the melted soap.

Add up to 1% of the melted soap base to make it white.  Be careful not to add too much as it will sink to the bottom when the soap is set.

If you are using this in cold process soap making, then you can also disperse it into your base oils.

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