SMP –

prevents your products from vanishing into thin air.
By utilising the SCHÜTZ SMP (Surface Modified Plastics) process, ECOBULK and ECODRUM containers are effectively sealed to prevent their contents from leaving the container (permeation).

SMP...

  • is a highly efficient permeation barrier.
  • improves chemical resistance to flammable, toxic and corrosive goods.
     
SMP treated synthetic containers offer complete safety during transport, economical storage and high resistance to solvents. In return, the environment benefits from the extremely low rates of permeation.
 
The superior mechanical properties of HDPE, including resistance to extension, expansion, hardness, resistance to cracking susceptibility as well as thermal properties and low-temperature behaviours are not influenced by SMP treatment.
SCHÜTZ has a state-of-the-art, completely equipped, SMP application plant at its disposal to treat transport and storage containers.
 
We also offer fluorination services exclusively for our customers: in this way, containers made from HDPE, LDPE or PP provide safe and environment-friendly packaging for all kinds of hazardous substances.

Permeation of untreated and SMP fluorinated HDPE containers
 

Weight loss in % Untreated SMP-fluorinated
petrol 77.2 1.8 *
diesel fuel 5.1 0.05 *
fuel oil 4.3 0.05 *
white spirit 13.0 0.1 *
xylol 70.8 4.2 *
cyclohexanon 2.9 0.6 *
heptan 37.7 0.2 **
naphtha 21.2 0.2 **
toluol 47.5 0.4 **
terpentine 3.9 0.05 **

Test conditions:

  • * 250 days at 40°C – 5 l canister, 1 mm wall thickness non-pigmented HDPE
  • ** 28 days at 50°C – 473 ml HDPE bottle, non-pigmented