Looking into what makes each Sandtrapper product style unique, you have to look at the denier of the synthetic fibers and the amound of binder used to fuse the high-loft matrix.

In many ways, a product such as a bunker liner may seem ordinary or common. In fact, the diverse technologies involved in manufacturing these products can produce a wide range of performance characteristics.

Click here for a detailed set of test results, specs and terminolgy definitions.

In many cases, articulating a product's features and benefits comes down to descriptive statements. However, there are definitive product characteristics that can be measured and produce distinct advantages.

When introducing Sandtrapper, IVI-GOLF defined a very simple set of principles -- create a durable product that has a framework for stabilizing sand geometries under water flow conditions. Simple yet effective. Over time, Sandtrapper's competition has made incorrect claims concerning performance and presented endless charts listing meaningless tests and test results.

To clarify important product characteristics and apply meaning to technical terminology, we performed a range of phyical property tests on our best product against the competition's best. We've created the following table:

Physical Property Sandtrapper II Competitive "Best"
Fiber Thickness 200 denier - polyester 25/45 denier - polyester
Fiber/Binder Ratio 5:3 6:1
Weight 16 oz sq yd 12 oz sq yd
Thickness .78 inches 1.0 inches
Tensile Strength (1) 59.5 lbs 30 lbs
Compression @ 50% 43.5 lbs 25 lbs
Permittivity (2) 7.22 sec -1 3.5 sec -1
Flow Rate 567 gpm / sq ft 250 gpm / sq ft
Transmissivity (3) 3.92 x 10 -3 n/a
UV Resistance (4) >80% @ 1200 hours >75% @ 500 hours
Note 1 - This property is measured by a grab test method. It determines the effective strength of the fabric when subjected to forces that tend to pull the fabric apart. (ASTM-D4632) This is the standard method for determining geotextile design and quality control. A different tensile strength test is called Wide Width Tensile and is used primarily in woven geotextiles. (ASTM-D4595) ------- Note 2 - Permeability or hydraulic conductivity of a geotextile divided by the geotextile thickness. The volumetric flow rate of water per unit cross sectional area per unit head under laminar flow conditions, normal (perpendicular) to the plane of the fabric. (ASTM-D4491) ------- Note 3 - The volumetric flow rate of water per unit width of a geotextile specimen per unit gradient in a direction parallel to the plane of the specimen. (ASTM-D4716) This was performed using (Gradient = 1) and Normal Load (100 psf) ------- Note 4 - A measure of the potential for the deterioration of tensile strength in the fabric due to exposure to ultraviolet light and water. (ASTM-D4355).