A must-have surface/flow improver for Rotational Moulders
Wednesday, 25 January 2023
RotoFlow® 4000 – a must-have surface/flow improver for Rotational Moulders
DRAM is as a small company specialised in problem solving products to help rotomoulders produce quality mouldings and optimise costs. We focus on sourcing the best products available on the market for our customers.
Today we would like to focus our attention on RotoFlow® 4000.

All rotational moulders know the struggle of trying to avoid voids around inserts, tight radii, threads, and deep cavities: all of these can be fixed by using RotoFlow® 4000, a mould coating that facilitates the flow of polyolefin, nylon and crosslinked resin into hard-to-fill areas of rotational moulding tools. Moreover, it has received NSF approval for use in food-grade rotationally moulded plastics.
What happens without RotoFlow® 4000?
- low quality and lack of consistency of rotomolded PE, PP, nylon, and crosslinked parts
- parts with pinholes, voids, blow outs
- poor threads
- badly anchored inserts
- surface porosity
All of these lead to higher scrap rates. Can you afford this, especially in the current climate?
Wouldn’t it be great to have a product that reduces scrap rates and that you can use less of?
One of our customers who has quantified it has reported a reduction of 25% in the amount of product used compared to their previous product, together with equally good or better results.
The COO of a US based rotomolder says “It is such a relief to have a product readily available, that outperforms other products in the marketplace, that doesn’t require as much spray, and to work with local suppliers that are technically savvy.”.

For a free sample, please contact us at [email protected]




