ASTM D3354 – Blocking Load of Plastic Film by the Parallel Plate Method

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ASTM D3354 – Standard Test Method for Blocking Load of Plastic Film by the Parallel Plate Method

ASTM D3354 yields quantitative information regarding the degree of blocking (unwanted adhesion) existing between layers of plastic film.

Blocking develops in film processing and storage when layers of smooth film are in intimate contact with nearly complete exclusion of air.

Temperature, or pressure, or both, can induce or change the degree of adhesion of the surfaces.

For this test, the load cell should be placed on the bottom plate (with a dimension of 4.3’’ X 4.3’’).

Another geometrically similar plate will be placed over the bottom plate, hanging below the crosshead.

For the common Procedure B listed in the ASTM Standard Test Method for Blocking Load of Plastic Film by Parallel Plate Method, the crosshead will be lowered

until both plates are in contact.

The crosshead is then allowed to move at a rate of 5.1mm per minute until 1.9 cm separation between the plastic films or is stopped at 200g force between the

two plastic films, whichever comes first.

Referenced Documents

ASTM Standards

D618 Practice for Conditioning Plastics for Testing

D883 Terminology Relating to Plastics

E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

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