Material Analysis: Materials Testing Services solutions
Westpak’s Material Analysis aligns with the needs of the customers and industries we serve. Testing provides the information needed to establish or confirm material properties, or evaluate differences between batches or suppliers, for example.
A few of the Material Tests Available from Westpak
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Cobb Test
Cobb Test
The ability of a hygroscopic material to resist the penetration of water is referred to as a Cobb test. Specifically, this test permits the determination of the quantity of water that can be absorbed by the surface of paper or board in a given time. Water absorption is a function of various paper and board characteristics such as sizing, porosity, etc. Read more about Cobb Testing
Tensile and Pull Test
Tensile and Pull Test
Tensile testing is a stretching force designed to determine the maximum tensile strength of the material. Pull testing measure the strength required to pull apart two bonded surfaces. It is often used in the medical device industry to measure and quantify the seal strength of sterile primary packaging. Read more Tensile / Pull Testing
Scuff & Abrasion
Scuff & Abrasion
The durability of printed, painted, or polished services to resist abrasion can be simulated by a scuff test procedure. These procedures can simulate the effects of contact by humans, items, or materials by the use of single or dual-surface abrasion methods and related equipment. Read more about Scuff & Abrasion
Mullen Burst
Mullen Burst
In a Mullen Burst test, a 1" diameter of material is pressurized from one side by means of a hydraulically driven membrane. The pressure necessary to force the membrane through the test material was referred to as its “burst strength”. Read more about Mullen Burst
Edge Crush Test
Edge Crush Test
The Edge Crush Test (ECT) determines the ability of corrugated fiberboard, a material consisting of a corrugated sheet and one or two flat linerboards, to withstand a crushing load in the edge down orientation. The test indicates the ability of a box constructed with the material to withstand static and dynamic top loading as would occur during warehousing or distribution. Read more about Edge Crush
Pin Adhesion
Pin Adhesion
The Pin Adhesion test measures the bond between the liners and the corrugated medium in a corrugated fiberboard structure. The test is conducted using a fixture in combination with a load frame, which determines the force required to separate the facings from the flutes. Read more about Pin Adhesion
Salt Fog / Salt Spray
Salt Fog / Salt Spray
Salt Fog testing enables one to determine the quality and reliability of a product under corrosive atmospheric conditions. Read more about Salt Fog / Salt Spray
Cushion Curve Analysis
Cushion Curve Analysis
Cushion Curve testing shows how material reacts to physical impacts which can be used to determine the static loading and required thickness for proper cushion design. Read more about Cushion Curve Analysis
Coefficient of Friction
Coefficient of Friction
To determine the starting and sliding coefficients of friction for plastic film and sheeting, Westpak conducts the Coefficient of Friction (CoF) test per the ASTM D1894 test standard. The protocol allows five basic ways in which the test apparatus may be assembled. Westpak’s test setup incorporates a precision test sled apparatus, a Shimadzu load frame, and a very accurate load cell to generate test data. Read more about Coefficient of Friction Test
UV Accelerated Weathering
UV Accelerated Weathering
Reliable and reproducible weathering data can be generated in just a few days with excellent correlation to outdoor weathering tests. Significant savings in time and expense are therefore achieved compared to outdoor testing. Read more about UV Accelerated Weathering
Creep Testing
Creep Testing
Creep, a mechanical property, is the tendency of a solid material to move slowly or deform permanently under the influence of a static load over time. For cushioning materials, creep may be defined as the change in thickness over a period of time as the result of a compressive load. Read more about Material Creep Test
Flat Crush Test
Flat Crush Test
The Flat Crush Test (FCT) measures the resistance of the flutes of corrugated fiberboard to a crushing force applied in a perpendicular direction tot eh flat surface. The test is satisfactory for single wall or double wall corrugated board. Read more about Flat Crush Test
Peel Adhesion Test
Peel Adhesion Test
There are a variety of test methods to conduct Peel Adhesion testing of pressure - sensitive tapes and adhesives. Westpak uses a load frame to perform the testing at either 180 or 90 degree angles.
Typical Procedures/Protocols
ASTM D3330
ASTM D3654
ASTM D3759
Slow-Rate Penetration
Slow-Rate Penetration
This test method permits flexible barrier films and laminates to be characterized for slow rate penetration resistance to a driven probe. The test is performed at room temperature by applying a biaxial stress at a single test velocity on the material until perforation occurs. The force, energy, and elongation to perforation are then determined.
Typical Procedures/Protocols
TAPPI T 811
TAPPI T 809
TAPPI T 821
TAPPI T 838