Coex Film Properties

Danafilms engineers know resin properties and how to blend and combine them. Below is a sample of some of the resins we use and the performance properties those resins provide.

LDPE (Low Density Polyethylene) -- General Purpose, Clarity
LLDPE (Linear Low Density Polyethylene) -- Strength, Toughness, Sealability
mLLDPE (Metallocene Linear Low Density Polyethylene) -- High Thermal Stability
EVA (Ethylene vinyl acetate) -- Modifier for Improved Sealability
HDPE (High Density Polyethylene) -- Moisture Barrier, Stiffness
PA (Polyamide or Nylon) -- Moderate Oxygen Barrier, Toughness, Formability, Temperature & Grease Resistance
EVOH (Ethylene Vinyl Alcohol) -- High Oxygen Barrier
PP (Polypropylene) -- Temperature Resistance, Moderate Moisture Barrier
Surlyn® (DuPont™ ionomer) -- High Performance Sealant
Peelable Blends (various resins in proprietary mixtures) -- Controlled Low Seal Strength  

Our engineers select coextrusion layers to produce the performance characteristics you want, balancing specifications against cost against the multiple qualities a resin offers. The chart below shows the trade-offs some of the most popular resins afford.