Lubricants & Slips

lubricantsheader

Polyvel masterbatches a wide variety of additives that modify the surface of the resin to reduce the coefficient of friction. The additives used include:

  • Silicone
  • Zinc stearate
  • Ethylene bis stearamide (EBS)
  • Erucamide
  • Oleamide
  • Molybdenum disulfide (MoS2)
  • PTFE

These masterbatches are designed for injection molders, film processors and compounders to add surface lubrication and mold release properties directly into the resin pellet feed without release sprays or pre-compounded resins. This class of masterbatches can also serve as a process aid. In the case of molybdenum disulfide in nylon, the active ingredient will promote the growth of a fine crystalline structure through nucleation, raising the heat distortion temperature.


For detailed product information and technical data on lubricating masterbatches, choose a specific Polyvel product below. For information on our PLA lubricants please visit our PLA masterbatch page.

Product: RE20 & RO20
Industry: Film/Sheet Manufacturing, Injection Molding
Function: Erucamide and oleamide based release aids for polyolefin and TPE (thermoplastic elastomer) processing

RE20 & RO20 Slip Masterbatches

Polyvel’s RE- (erucamide) and RO- (oleamide) series of slip additive masterbatches for film are:

  • More cost-effective slip additives compared to low load (5%) alternatives
  • Do not contain fillers for enhanced transparency
  • Engineered for superb dispersion and slip properties
  • RO20 for processing below 220°C
  • RE20 for processing above 220°C
  • Available from 10-40% loadings

The high coefficient of friction of LDPE, LLDPE & PP film contributes to adhesion to film or metal surfaces in production. Low erucamide or oleamide levels decrease the film coefficient of friction and reduce or eliminate sticking.

slipbloomrate

When using these masterbatches, the new coefficient of friction will be a function of both bloom time and letdown.

Product: RM40 & RM70 series
Industry: Film/Sheet Manufacturing, Injection Molding
Function: MoS2-based internal lubricant for most Nylon grades

Molybdenum Disulfide Masterbatches

Polyvel is the leading supplier of molybdenum disulfide (MoS2) masterbatches for internal lubrication of nylon films and injection-molded parts.

Polyvel’s molybdenum disulfide (MoS2) masterbatches enable injection molders to incorporate the benefits and lubricating properties of MoS2 into their molded nylon parts without purchasing costly pre-compounded MoS2 modified resins.

MoS2 is an internal lubricant for nylon compounds. It reduces or eliminates mold drag during molding and acts as a mold release. Post molding component assembly is made easier because of the self-lubricating properties.

Typical physical properties:
Header
Header
PA-6
RM40
PA-6,6
RM40Z
PA-6,6
RM70

MoS2

%

40

40

70

Pellet form

Cell

Dustless, black

Dustless, black

Dustless, black

Specific grav.

gm/cc

2.64

2.64

3.40

Softening pt

°C

220

250

107

Use level

%

4.0 – 6.0

4.0 – 6.0

2.5 - 3.5

Process

Cell

Injection molding Sheet, Profile extr.

Injection molding Sheet Profile extr.

Injection molding, Compounding

When using these masterbatches, the new coefficient of friction will be a function of both bloom time and letdown.

Product: RZ40
Industry: Film/Sheet Manufacturing, Injection Molding
Function: Zinc stearate-based release aid for high impact polystyrene (HIPS), ABS, Nylon, and PBT.

Zinc Stearate Masterbatch

Polyvel’s RZ40 release aid masterbatch contains zinc stearate and is used in injection molding high impact polystyrene, ABS, nylon, and PBT. Polyvel RZ40 functions at low levels to reduce adhesion between mold surface and polymer. Polyvel offers zinc stearate masterbatches for other polymer applications including: polypropylene; polyethylene and others upon request.

Typical physical properties:
Recommended Use Levels (%)

High impact polystyrene (HIPS)

1-2

ABS

1-2

Nylon

1-2

PBT

1-2

Polyvel RZ40 is not recommended for use in crystal styrene if clarity is an issue.

Typical Physical Properties:

Physical Form

Translucent pellet

Additive

Zinc stearate

% Active Additive

40%

Softening Point

94°C

Product: Silicone-based aids
Industry: Film/Sheet Manufacturing, Injection Molding
Function: Masterbatches for polystyrene, Nylon, PP, and PE containing silicone

Silicone Masterbatches

Polyvel silicone processing aid and mold release masterbatches are comprised of polydimethylsilicone* fluid dispersed in polyethylene, polypropylene, nylon, high impact polystyrene resin, acetal copolymers and others upon request.

Custom formulating is available on request if another silicone viscosity is needed.

Typical Process and Property Benefits:
Process
Property

Reduced cycle time

Smoother surface

Lower injection pressure

Lower molded-in stress

Increased flow

Reduced warping

Eliminate manually applied mold release

Reduced cost

Reduced breakage when ejecting parts

Reduced cost

Typical Concentrate Product Properties:
Property
Unit
CM-S01
CM-N02
CM-E02
CM-P03

Carrier resin

Cell

polystyrene

nylon

polyethylene

polypropylene

Additive

*12,500 cS

silicone

silicone

silicone

silicone

Loading

%

15

15

15

15

Color

Cell

natural

natural

natural

natural

Pellet count

pellets/gm

50 +/- 5

50 +/- 5

50 +/- 5

40 +/- 5

Letdown

%

0.5 – 1.0

0.5 – 1.0

0.5 – 1.0

0.5 – 1.0

Regulatory Status

Silicone fluid 12,500 cS meets the requirements of the FDA regulation "Code of Federal Regulations 21 CFR” concerning food contact applications when used in accordance with sections 175.105; 175.300; 176.170; 176.180; 1350; 177.1520 or 181.28.

For more information, or to receive a sample, please contact us.


Contact Information

Polyvel, Inc.
100 Ninth Street
Hammonton, NJ 08037
Phone  :  (609) 567-0080
Fax No. : (609) 567-9522

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