WATER VAPOUR PERMEABILITY CUPS The vapometer is used for determining the water vapour permeability of sheet materials such as specialty paper grades, polyethylene, building material, leather, weather proof clothing, vinyl, foil and laminates. This property is essential in determining a materials moisture proofness or the ability to protect contents from the transmission of water vapour... The water vapour permeability cups are available in a wide range of sizes for mechanical and wax sealing. They can be used at any temperature or relative humidity to ensure product performance across different conditions.

model 68 Vapometer

Depending on the end use, water or a dessicant is placed in the base of the container. The specimen is then quickly sealed and placed in a test chamber that controls the atmosphere. Vapour loss or gain is measured by recording the weight of the sample at different intervals over a period of time.

model 305 Water Vapour Permeability Test Dishes

Model 68 Vapometer The vapometer cup consists of a light aluminium cup and a flanged rim with a neoprene gasket that holds the specimen in place. This design was specifically used to eliminate edge leakage. The specimen is securely sealed between the lower and upper flange with six knurled head screws. There are some applications where the mechanical seal does not provide an adequate seal. In these applications a wax seal must be employed.

Features • mechanical or wax seal • wax seal cutting dies and templates • test samples up to 3 mm thick

Model 305 Water Vapour Permeability Test Dishes In applications where the material does not respond to the vapometer’s mechanical seal, a wax seal can be used. Test dishes utilize a cast wax seal to hold the sample in place. The wax seal is created with a casting template.

Packaging, Paper, Plastics, Textile ... 3.27.B

Physical specifications Dimensions model 68 diameter depth

63.5 mm 12.7, 19 or 50.8 mm

model 305 diameter depth

50.8 to 152.4 mm 6.35 to 38.1 mm

Sample preparation Accurate samples for the vapometer can be quickly prepared with a mallet die known as the vapometer sample cutting die. It is made of forged and tempered steel and is available in a variety of sizes.

Net Weight (weight depends on the physical specification of the cup) model 68 between 54 and 120 gr model 305 between 25 and 128 gr

Standards TAPPI T-464*, T-448*, ASTM E96, DIN 53122* *only cups or dishes utilizing a was seal comply

Agent

Cardboard Packaging Plastics Pulp

Non-wovens Paper Printing Inks Textile

Nijverheidslaan 47 8540 Deerlijk Belgium Tel.: +32(0)56.78.21.70 Fax: +32(0)56.77.30.40 Email: [email protected] Website: www.rycobel.be