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BaodingFirst LF-34 Universal Flowing Dispersant
Phone: 0750-6680778
Product Description
Pain point you may have experienced
Your internal mixer runs hot. To avoid scorch, you have to slow down the batch cycle – but that kills your throughput. The compound sticks poorly to the mill roll, extruded profiles come out with rough surfaces or die swell, and the reject pile keeps growing. You have tried process oils or waxes, but they either delay cure or leach out over time.
Why LF34 is different
First® LF34 is a zinc‑free multifunctional flow dispersant designed for NR, SBR, BR, NBR, EPDM and other general rubbers. It is a synergistic blend of advanced fatty acids, esters, soap salts and waxes. Instead of just lubricating, it actively modifies the viscoelastic behavior of the compound.
Add LF34 during the internal mixing stage. You will see the Mooney viscosity drop immediately – the raw rubber flows more easily. The batch temperature stays lower even at higher rotor speeds, so you can shorten the mixing cycle without risking scorch. Because it lowers energy consumption, your mixer draws fewer amps per batch.
What you gain on the mill and extruder
Better roll‑sticking – the compound no longer falls off the mill, especially with high‑filler recipes.
Reduced die swell – extruded profiles hold their shape, so you cut less scrap.
Smoother surface finish – no more sharkskin or rough edges.
No cure interference – LF34 does not delay vulcanization speed nor harm physical properties such as tensile strength or tear resistance.
Real‑world result
A manufacturer of EPDM automotive weatherstrips switched from a conventional processing aid to First® LF34 at 2 phr. Their extrusion line speed increased by 18% because die swell became predictable. Surface defects dropped by two‑thirds, and the reject rate fell from 4.5% to 1.2%. They also noticed that the injection molding machine could run with shorter backpressure time.
Typical specifications
Appearance: white to off‑white granules
Chemical composition: higher fatty acid,fatty acid ester fatty acid soap salt and wax
Melting point: approx. 65-75°C
Recommended dosage: 1–3 phr (optimise for your recipe)
Packaging: 25 kg carton with inner PE liner
Storage: 12 months in unopened packaging, cool and dry
Would you like a sample to run on your own line? Just let us know. No rush — purely for your evaluation
Contact Us
Nationwide Unified Service Hotline
http://www.rubberaccelerator.net/
Guozhou Industrial Park, Zhongtang Town, Dongguan, Guangdong, China
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