Product Specification
Specification | Bead Size(mm) | One-time Expansion | Application |
PKF-301XS | 1.00-1.60 | 50-70 | Block and low-density product |
PKF-302XS | 0.85-1.25 | 45-65 | General products with thickness more than 12mm and large packaging |
PKF-303XS | 0.70-1.00 | 40-60 | Medium-density packaging |
PKF-401XS | 0.50-0.80 | 40-55 | Packaging with thickness over 8mm |
PKF-501XS | 0.40-0.60 | 30-50 | Packaging with thickness over 6mm |
PKF-601XS | 0.30-0.50 | 20-40 | Special product including full mould casting |
Fast cycling grade EPS confers excellent processing and product properties
●Consistent raw beads and good fluidity of foamed bead.
●No harmful odors in pre-expansion and moulding.
●Short maturing time.
●Characteristically rapid cooling in automatic molding machines and better performance with vacuum system.
●Uniform cell size, beautiful and flat surface appearance.
●Good integration inside, high resistance.
●Use in contact with food.
●Recommended 40-60 expansion ratio.
Physical Properties
Property | Unit | Density(kg/m3) | |||
15 | 20 | 25 | 30 | ||
Compressive Strength at 10% Deformation | KPa | 65-110 | 100-160 | 140-210 | 180-225 |
Bending Strength | KPa | 160-210 | 240-300 | 325-400 | 410-490 |
Flexural Strength | KPa | 150-230 | 225-325 | 260-415 | 375-510 |
Coefficient of Linear Expansion | 1/K | 6*10-5 | |||
Thermal Conductivity(max) | W/(m*k) | 0.35 | |||
Specific Heat | KJ/(kg*k) | 1.21 | |||
Recommended Proceeeing Condition
●Material Selection
Select proper bead diamaters according to the required shape and density of the final product. Large articles in medium and low density (less than 16g/I) require 302XS or 301XS. Continuous pre-expanders require 302XS or 303XS while batch pre-expanders require 303XS/ 401XS / 501XS.
●Pre-expansion
Steam Pressure: 0.15MPa-0.30MPa
Pre-expansion Temperuture: 96-108℃
Condition Time: 4-24 Hours
●Moulding
Steam Pressure of Stationary Mould: 0.7-1.2kgf/cm2
Steam Pressure of Moving Mould: 0.75-1.2kgf/cm2
Health and Safety
●Fast cycling grade totally meets food cintact safe requirements as is less than 0.2% wt/wt. The total comtent of aromatic hydrocorbon impurities are far lower than the one in similar competitive products.
●During storage, transportion and processing, low levels of pentance blowing agent will be present, which will have an explosive range in air between 1.1-6.0%. The raw material and products must therefor be well ventilated and kept far away from sourse of ignition including static electricity.
Application
