wwiitthh INTERFIBE INTERFIBE cceelllluulloossee ffiibbeerr Incorporating Interfibe Cellulose Fibers A study was conducted by an independent research lab to determine whether adding Interfibe Cellulose Fibers to White Elastomeric Roof Coatings would produce positive results in: TTeennssiillee ssttrreennggtthh MMuudd CCrraacckkiinngg EElloonnggaattiioonn BBrriiddggiinngg SSwweelllliinngg DD--66008833:: SSttaannddaarrdd SSppeecciiffiiccaattiioonn ffoorr LLiiqquuiidd--AApppplliieedd AAccrryylliicc CCooaattiinngg uusseedd iinn RRooooffiinngg uusseedd ffoorr EEvvaalluuaattiinngg tthhee FFoorrmmuullaattiioonn ••AASSTTMM 22337700 – Test method for determining the elongation, tensile strength and stiffness (modulus of elasticity) of organic coatings when tested as free film ••AASSTTMM –– 44779988 - Test for accelerated weather conditions for testing bituminous materials (xenon – arc method) ••AASSTTMM DD447711 – Water Swelling - Procedure to evaluate the comparative ability of rubber and rubber-like compositions to withstand the effect of liquids ••AASSTTMM 662244 – Tear Strength - Procedure for measuring a property of conventional vulcanized thermoset rubbers and thermoplastic elastomers called ••AASSTTMM 552222 – Flexibility - Determination of the resistance to cracking of organic coatings on substrates of sheet metal or rubber-type material Use this page as your ASTM reference through the presentation RRaaww MMaatteerriiaall FFoorrmmuullaattiioonn Raw Materials Supplier KTPP Tamol 901 Rohm & Haas Nopco NXZ Henkel Snowhite 12 Omya TiPure R-960 Dupont Rhoplex EC-2540 Rohm & Haas Texanol Eastman Natrosol 250 Hercules 5FT Cellulose Fiber Interfibe RRoohhmm && HHaaaass WWhhiittee EEllaassttoommeerriicc FFoorrmmuullaattiioonn Acrylic Coating Material Lbs/100.93 gal Lbs/1 gal Water 161.6 1.616 KTPP 1.51 0.0151 Tamol 901 5.02 0.0502 Nopco NXZ 2.01 0.0201 Snowhite 12 385.79 3.8579 Tipure 74.09 0.7409 EC 2540 496 4.96 Nopco NXZ 2.01 0.0201 Texanol 7.32 0.0732 Water 26.7 0.267 Natrosol 250 MXR 4.42 0.0442 Total 1166.47 11.6647 Property Rohm & Haas Spec Actual Wt/gal 11.6 11.6 Viscosity, Ku 95-105 93 Wt. % Solids 62.8 66.1 44 DDiiffffeerreenntt BBlleennddss WWeerree PPrreeppaarreedd:: Blend # 1 2 3 4 materials in lbs. Acrylic Coating 100.00 99.00 98.00 97.00 Interfibe 5FT 0.00 1.00 2.00 3.00 Total 100.00 100.00 100.00 100.00 The Interfibe 5FT was a POST ADD material TTeessttiinngg ooff BBlleennddss Property No fiber 1.00 2.00 3.00 D6083 Requirement Viscosity 93.00 97.00 109.00 124.00 85-141 Volume Solids, % 49.00 51.50 52.30 55.10 >50 Initial Tensil, psi 111.00 158.00 189.00 207.00 200 min Elongation, % 428.00 252.00 153.00 112.00 100 min Water Swelling % 44.80 23.50 20.70 17.60 20 max Tear Resistance lbs/in 78.00 88.00 78.00 78.00 >60 Permeance, perms 12.60 12.30 16.40 20.40 50 Max Tensile, psi after 1000 h D4798 153.00 257.00 277.00 301.00 NR LTF degrees F after 1000 h D4798 10.00 15.00 15.00 15.00 -15 min BBeenneeffiittss • Addition of approximately 2% fiber by weight: - Increases tensile strength by a significant amount. - The addition of fiber brought the formulation within the ASTM 6083 requirement for tensile strength with an acceptable decrease in elongation – Meets the ASTM D 2370 elongation requirement – Meets the desired water swelling standard (ASTM D471) – Minimal effect on tear resistance. (ASTM 624) – Increased the volume solids to meet the ASTM D6083 standard CCoolloorr MMeeaassuurreemmeenntt • Color reflectance was measured with a Hunter Lab Colorimeter • The Colorimeter measures L,a,b color values. – The “L” value measures lightness and varies from 100 for perfect white to zero for black approximately as the eye would evaluate it – The “a” value measures redness when positive, gray when 0, and greenness when negative – The “b” measures yellowness when positive, gray when 0, and blueness when negative Results on next two screens… RReefflleeccttaannccee BBeeffoorree EExxppoossuurree TTiimmee Sample ASTM D 2824 Color Values Reflectance L A B 1 90.00 95.35 -1.07 4.56 2 89.00 94.96 -0.88 4.22 3 87.00 93.44 -0.92 5.50 4 85.00 92.34 -0.77 6.15