T E C H N O L O G Y. Patent Pending

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1 TECHNOLOGY Reasons to choose Reoxthene technology

2 Reasons to choose Reoxthene technology is the revolutionary technology developed by the POLYGLASS and MAPEI Research & Development laboratories. An innovative approach has revolutionised traditional bitumenous compound mixing and compound techniques. This lets us go beyond yesterday s technological limits in the weight/thickness ratio. TECHNOLOGY lets POLYGLASS produce chemically innovative compounds with specific weights, which can t be achieved using traditional phase inversion methods. TECHNOLOGY is protected by a patent which guarantees exclusive POLYGLASS rights. Ultralight Technology Innovative Bituminous Polymer Compound Incredibly Lightweight (up to 4 mm = 29 kg) Increased product performance Exceptionally easy to apply, higher daily laying output Ultralight Technology Technical and laying advantages (over traditional membranes) TECHNICAL ADVANTAGES - No filler, - Density of less than 1 g/cm 3, - High polymer content, - Better UV radiation resistance for longer duration, - Higher softening temperature, - Increased bituminous-polymer compatibility for better dispersion, - Improved cold flexibility, - Higher elongation values than traditional membranes, - Greater post-laying thickness. LAYING ADVANTAGES - Lighter membranes for easier handling, smoother application, and faster laying, - Easy to apply and greater speed of laying, - Larger load shipping possibility, - Less load on support structures (roofs, etc.), - Higher specific heat that lets compound be worked for longer periods of time during laying.

3 TECHNOLOGY IMPROVED PERFORMANCE COMPOUNDS WITH GREATER POLYMER CONTENT The replacement of calcium carbonate mineral by special lightweight polymer fillers in Reoxthene membranes lets the polymeric matrix provide greater influence on membrane final characteristics. Practically speaking, this means better polymeric dispersion, longer durability, higher softening temperature, and better cold flexibility values (*). (*) data taken from comparable tests ADVANTAGES +60% 0% CARBONATE FILLER = + POLYMER +20 C +20% -5 C MEMBRANE Es PRO-EVOLUTION 4 mm % 150 C 8-15 C Polymer content Softening T Bitumen-polymer dispersion Cold flexibility TRADITIONAL MEMBRANE 100% 120 C 6-10 C +10% 50% Elongation 40% Bitumen and bituminous binders Determination of softening point - Ring and Ball method. Standard UNI EN POLYMERS = >ELONGATION Load (N) APP TRADITIONAL APP COLD FLEXIBILITY - Thermo-cryostat (with bending machine). Standard UNI EN 1109 BETTER SEALING The special Reoxthene TECHNOLOGY compound improves sealing adhesion without the risk of forming weak points between imperfectly seamed sheets usually posed by mineral filler membranes Tensile stress deformation (%) Compound alone without reinforcement stretch test chart POTENTIAL SEALING WEAK POINTS TRADITIONAL MEMBRANE MEMBRANE Seam peeling test SEAM PEELING - Dynamometer. Standard UNI EN

4 Reasons to choose Reoxthene technology INCREASED ELONGATION VALUES The absence of carbonate mineral fillers permits Reoxthene membranes to have higher polymer content: these lightweight compounds offer up to 300% elongation, while traditional membranes only go as high as 200%. Combined with specific reinforcements this helps increase the elongation of the final product. Traditional membrane elongation only reaches a maximum 40% compared to the 50-60% values possible with Reoxthene membranes. MEMBRANE initial AFTER STRETCHING initial AFTER STRETCHING = BETTER COMPATIBILITY WITH HIGH-THICKNESS THERMAL INSULATION MATERIALS Tensile strength - Double column dynamometer with 5kN cell. Standard UNI EN EXCELLENT BITUMINOUS POLYMER DISPERSION Thanks to their higher polymer content and superior quality, Reoxthene membranes ensure better dispersion than traditional waterproofing membranes. When well dispersed in the polymeric matrix, the bitumen is less vulnerable to temperature change, and this type of protection improves the characteristics of both cold flexibility and ageing. MEMBRANE MICROSCOPE PHOTOGRAPHY SHOWS THE BITUMEN PARTICLES (BLACK) DISPERSED IN THE POLYMERIC MATRIX (GREEN) AT 250X MAGNIFICATION DISPERSIONS Fluorescence microscope at 250X magnification.

5 TECHNOLOGY LONGER LASTING DURABILITY (with anti-uv agents inside) Thanks to the inclusion of opacifiers, special Reoxthene technology protects the polymeric matrix against UV radiation and increases membrane durability remarkably. The difference is easy to see in the photos below. After 1,000 hours of use (UNI EN 1297) neither membrane shows any sign of surface damage. After over 3,000 hours, the Reoxthene membrane shows no signs of damage and is still going strong. MEMBRANE UV AGEING - QUV radiation UV ageing chamber. Standard UNI EN 1297 (3,000 working hour cycle) 3,000 QUV working hour ageing. INCREASED SPECIFIC HEAT The new Reoxthene compounds have higher specific heat than those used in traditional membranes. This ensures longer compound workability during laying. This permits correct laying while also eliminating areas that do not adhere to the substrate for the greatest assurance of a perfectly waterproof and longlasting system, especially at both the head and side overlaps. The special new compound also helps reduce footprint damage by isolating membrane torched surfaces. TRADITIONAL 4 mm 13,5 J/g TRADITIONAL 4 mm 7,9 J/g TRADITIONAL 4 mm + 125% (*) + 190% (*) + 300% (*) PRO-EVOLUTION 4 mm 17,3 J/g EVOLIGHT 4 mm 15,5 J/g BITULIGHT 4 mm MEMBRANE 4,8 J/g 14,2 J/g SPECIFIC HEAT - Differential Scanning Calorimetry (DSC). (*) comparative tests conducted on products destined to similar applications under similar conditions t=10->200 C BETTER CONSERVATION OF INITIAL THICKNESS AFTER LAYING After laying by light torching, traditional membranes invariably lose some thickness. This never happens with Reoxthene membranes because the carbonate mineral filler has been replaced with special components that improve softening temperature to promote the conservation of all the original thickness. This strengthens an already optimum system for even greater protection. 4 mm initial 3,95 mm 3,7 mm 4 mm TRANSVERSAL MEMBRANE SECTION AFTER LAYING 4 mm TRADITIONAL TRANSVERSAL MEMBRANE SECTION AFTER LAYING THICKNESS - Fluoresence microscope at 20X magnification. Standard UNI EN THICKNESS + 6,5%

6 CHOOSE THE GREAT LIGHT OF TECHNOLOGY Ultralight Technology 10/ POLYGLASS SPA Registered Office: Viale Jenner, MILANO - Head Office: Via dell Artigianato, Ponte di Piave (TV) - Italy Tel Fax info@polyglass.it