Leaf Defier Gutter Filter

BUILT TO LAST  -  DON'T SETTLE FOR LESS

The most important factor with this type of gutter protection system is how long the filter is going to maintain its original size and shape.  Think about it. The premise of this system is to stuff your gutter so that no other debris can get in. A great premise, but what if the filter begins to decompose?  Now your gutter is more clogged with decomposing foam and debris.  That's why Leaf Defier has been tested extensively to ensure the product will not decompose under the harshest of environments. That's also why the Leaf Defier Gutter Filter system is backed by a 25 Year Warranty (longest warranty available for Gutter Filter products). 

Don't settle for imitations and cheaper knock offs!  The proof is in Leaf Defier's scientific testing.

COMPRESSION FORCE CHARACTERISTICS

Both accelerated weathering tests and mechanical property evaluations have confirmed the superb quality and product integrity of the "multi-polymer" thermally fused gutter filtration system supplied by Leaf Defier Gutter Filter.  An independent quality assurance laboratory has tested this technology and the results detail the value added nature of this innovative product for the gutter protection industry.

After testing at 1000 hours and 4500 hours (equivalent to 5 years exposure) of Xenon light chamber exposure, the "multi-Polymer" fusion coated material (TYPE 1 [Leaf Defier Gutter Filter]) retained more than 60 % of its original strength and integrity. The "untreated" (TYPE 3 & 4) urethane filtration media (also tested in side by side comparison) retained only 18 % and 23 % of their inherent strength from the first stress point of 1000 hours.The "chemically coated" product (TYPE 2) tested in the same chamber in side-by-side comparison tests, retained only 35 % of its structural integrity.

In short the force needed to deflect the XENON exposed "multi-polymer" fusion coated product (TYPE 1 [Leaf Defier Gutter Filter]) by 50 % after 4500 hours of exposure (equivalent to five years UV exposure) was 28.44 % of the force needed to deflect the unexposed material. All other materials show significantly inferior performance at the maximum exposure time of 4500 hours.

SURFACE DEGRADATION CHARACTERISTICS

The Ultraviolet light from the sun and severe weathering conditions have the most pronounced effect at the surface of the polymer matrix where in fact the true protection the plastic provides is compromised. In all polymer plastics and coated materials the "surface erosion and degradation" over time is a very debilitating parameter for the polymer matrix and its ability to function properly. As a result the long-term protection that the polymer provides is most critical at this surface where the material is exposed to the elements of nature and subject to reduced performance over time.

After the XENON arc chamber study was completed, all four materials were brushed to remove any loose or flaking polymer on the surface exposed in the weathering chamber to the UV simulated light. As this surface slowly degrades with exposure to the elements the inherent protection of the material becomes less effective and the product will fail to provide the long-term integrity that is also required for gutter protection systems. As we can see here the sample heights before and after exposure in the weathering chamber certainly give a clearer picture of the higher value provided by the "multi-polymer" fusion coated product (TYPE 1 [Leaf Defier®]). This is the critical surface in terms of performance, as any failure due to UV exposure and severe weather conditions will be most apparent on this Xenon exposed surface of the material. After the materials were taken from the test chamber and brushed, the sample heights were then measured to one thousandth of an inch with the following results noted:

As the above table indicates, the % loss or exposed surface degradation was minimal with the TYPE 1 (Leaf Defier Gutter Filter)"multi-polymer" fusion coated product available from Leaf Defier Gutter Filter. The surface degradation with this "multi-polymer" material is LESS THAN one tenth of 1 % as compared to significant losses in surface character with the other materials tested.

This patent pending/proprietary technology of Leaf Defier Gutter Filter has provided the gutter protection marketplace with a thermally fused composite that is a significant value added material for this industry.  With this type of long term resistance to surface degradation and product erosion we can see why the "multi-polymer" gutter protection material from Leaf Defier Gutter Filter performed so well in both the UV stability/weathering and mechanical properties testing of this independent study.

Testing Parameters and Protocol

Leaf Defier Gutter Filter has employed an outside testing facility that specializes in cellular plastics performance testing. They exposed our Patent Pending / Proprietary Leaf Defier Gutter Filter Materials in a Xenon (IR/UV) GUV (UV) 4500 hour testing process, simulating five (5) years of all possible weather conditions including, but not limited to, ultraviolet and infrared radiation, salt/fog spray for corrosion, high/low humidity, chemical fog, fine-to-course particulate exposure, freeze/thaw and fine mist to water spray/immersion.

This accelerated laboratory exposure program uses state of the art weathering equipment Xenon (IR/UV) GUV (UV) as follows:

      - The testing procedure was an eight-month process where materials were tested for physical characteristics at  0(baseline), 1000, 2200 and 4500 hours.

      - At each hour mark, product was removed and tested for, but not limited to, tensile strength, tear strength, elongation, density, compression force deflection, surface degradation etc.

      - That information is then recorded and compared to the non-exposed foam specifications in order to get a better idea of the endurance and degradation of the product over a simulated time.

     - This testing was done in accordance to ASTM G 26-96, ASTM 155-A testing methods common to exterior plastics for building materials.

FIRE TEST CHARACTERISTICS

The photographs below show the startling results of the more severe Methenamine Pill Test, where the test samples were cut from the same block of foam and one 10 X 10 X 3.25 inch sample was treated with the thermally fused post cure protection and the other sample was left untreated. In addition to the weathering tests, this "multi polymer" thermally fused material was subjected to both UL-94 H testing protocol and the standard 84 Methenamine Pill Test in our laboratory at Leaf Defier Gutter Filter. The fused material was successful in passing both tests.

This kind of performance certainly sets the "multi polymer" thermally fused material at a very high value added level versus the other cellular gutter protection systems currently available to the industry. As noted in the photographs, the untreated sample burned completely through the foam block, while the thermally fused material was essentially unaffected by the ignition of the Methenamine Pill.

The thermally fused material after a one-minute burn time showed a 1cm depression at the pill contact site with an outside diameter of 2.5 cm.

In the pill test Lily tablets (# 1588) were used to test two samples that were of equal volume. The uncoated "raw" sample was completely burned through the entire block (8 cm thick) in less than 30 seconds. The burn radius was in excess of 16 cm on the surface of the sample. The Methenamine Pill has a flash point temperature of 250 degrees Centigrade or 482 degrees Fahrenheit, which would substantially exceed any temperature that would come in contact with the thermally fused gutter protection surface from chimney embers or wood burning stove exhaust. In short, the Leaf Defier, fused polymer material provides a substantial level of protection for almost any gutter system.