Does somebody know the composition of sealing wax?

Question

The factory provided me the following composition but rejected by our client. Is there other composition that uses no Rosin?

Rosin 39%; Shellac 26%; Titanium oxide 26%; CI pigment 3% & PE wax 6%.

In addition, this wax is too brittle, any chnages on the % make changes on the brittleness?

Answer 1

Anything wrong with just paraffin wax?

Or a modified paraffin, as in US Patent 4013188:

The preferred ranges of hot melt paraffin-based resin composition components will be as follows: Paraffin Wax 45-82.5% (MP 143.degree.-145.degree.F) Co-polymer of ethylene and 12.5-25% vinyl acetate -- Elvax 260 Piccotex 120 * (resin co-polymer 5-25% of vinyl toluene with alpha methyl styrene).

This formulation should have improved characteristics with regard to tensile strength, formability, temperature-viscosity curves, and resistance to sharkskin-type deformations.

Answer 2

This sounds like a formula for sealing wax for letters; it is supposed to be hard and brittle.

Maybe you are looking for something that is more like a putty, or a sticky, rubber-like material? If you could tell what the final application is, people could better help you with finding the optimum product.