SPREFIX SPRAY INSULATION _ in the marine market.

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1 SPREFIX SPRAY INSULATION _ in the marine market. A self-adhesive glass or stone wool, sprayed directly onto surface.. Easily applied to wood, steel, plastic or other surfaces without any mechanical fasteners whatsoever. No occurrences of air pockets between the insulation material and the underlying surface, now or later. Non-existence of joints or gaps. It is seamless system.. Easily applied onto the flat, curved, uneven surfaces, inside ducts, around corners, and on already installed equipments or structures. Entirely free of any additives such as solvents, fusible silicates, cement and asbestos. Not being affected by vibrations caused by, for example, industrial machinery, ship s engines and drilling equipment. Eliminating the weakest points on the insulation system.)

2 Our quality management system is certified according to ISO As for the fire protection in the marine and offshore sectors, one of the toughest industrial environments in the world, DAEHYUP SPRAY s solution fulfils every single requirement stipulated by regulating agencies anywhere. SPREFIX SPRAY INSULATIONSYSTEM SPREFIX S Stone wool (Rock wool) in combination with a waterborne two-component binder system For the fire insulation type (Satisfying A60 class in the shipbuilding industry) SPREFIX G Glass wool in combination with a waterborne two-component binder system For the thermal and soundproof type. 1 Surface preparation(priming): Spray binder A lightly 2 Mix and Application Binder A Binder B Glass wool or Rock wool fiber 3 Surface adjustment Thickness, density, leveling the surface and adjusting around corner 4 Finishing coat (When necessary)lpo or AL-FOIL SPREFIX S SPREFIX S density 140kg/m3, and is gray in its natural color. It has the same qualities as SPREFIX G in sound absorption, condensation control and thermal insulation, but SPREFIX S is mostly used where high level of fire resistance is required. Fire protection SPREFIX S has been approved as satisfying A60 class fire-resistance standard (Deck &

3 Bulkhead) in accordance with IMO Resolution A.754(18), by DNV and other major classification societies in the world. Fire protection

4 SPREFIX G Finish condition of DAEHYUP SPRAY S SPREFIX G is white in its natural color and is also rated as Non-combustible material in accordance with IMO Resolution A. 799(19), by DNV and other major classification societies in the world. SPREFIX G is a lightweight material, density 45~65kg/m3, and is mostly used for sound absorption, condensation control and thermal insulation in areas where lightweight material is requested. Thermal Insulation The thermal conductivity of SPREFIX G has been tested =0.027 Condensation control One of the best characteristics of SPREFIX G G is its capacity to absorb a large quantity of moisture, and to release moisture without deteriorating the adhesion to the substrate or damaging to the insulation.)

5 Mold-resistance test SPREFIX S/G Corrosion-resistance test

6 Sound absorption Type approvals and Certificates Finish condition of DaeHyup Spray

7 SPREFIX S B-15 class Bulkhead system (S-B301) SPREFIX S, S-B301 system has been approved to apply as draft stop or B-15 class curtain plate system in complex areas SPRAY LPO Spray Type Vinyl Coating LPO is a fire retardant type and is used as a finishing material on DAEHYUP SPRAY insulation system The main active ingredient of LPO is based on Ethylene Vinyl Acetate. Used as a finishing material to the areas where spray insulation system is exposed, such as storages, engine room, machinery rooms and etc. Characteristics Replace the fuction of AL-FOIL with excellent film formation Excellent adhesive property with SPREFIX insulation system Repair and maintenance are easy and simple. Seamless system. Various colors (White, light gray and any requested colors) Convenient application by spray type. Fire retardant, nontoxic and smokeless Oil vapor bariier

8 Application Used as a finishing material to the areas where spray insulation system is exposed, such as storages, engine room, machinery rooms and etc. Used as reinforcement to the surface of spray insulation system around door frame and window in order to protect the surface from any mechanical damage.

9 Quality guidance for SPREFIX insulation system 1. General This quality manual has been prepared to assist DAEHYUP SPRAY installing contractors in their efforts to provide quality workmanship in the field application and, to assist their reliable inspection. 2. SPREFIX installing equipment The recommended installing equipment is the SPREFIX spray machine, exclusively made by SPREFIX. 3. Requirements 3.1 Surface preparation No need to paint on the steel plate that is pretreated with Zinc primer. The surface must be free from grease, oil rust and dust. The temperature of surface must be maintained above +0 Humidity is must be maintained below 80%. 3.2 Certified worker The installation is conducted only by the contractors with documented skill, who are approved by SPREFIX. 4. Spraying 4.1 Marking the thickness of required thickness according to the table of material consumption is preceded before spraying. 4.2 Surface treatment It is recommended to spray LPA on the few areas of the surface Spraying procedure Inside of stiffener or beam Around of stiffener or beam Spraying from lower to upper direction. Fallen wools during the installation can be used to fill inside of stiffener. Remaining wools must be cleaned by vacuum cleaner or brush Padding or Rolling For obtaining the flatter and smoother surface, roll with roller or pad onto the surface that has been dried slightly (within 10 minutes). Apply over-spray with mixture of water and binder in order to firm the surface, 5. Density check It is recommended to collect 2~3 samples in 300x300mm size from a ship where the SPREFIX is installed. Examine the density by measuring thickness and weight of sample Density(Kg/m3) = Weight( Kg ) / 0.3m x t (Thickness, m )

10 SPREFIX G SPREFIX S 6.Measuring the thickness 3 or 4 points per square meter shall be measured by the thickness gauge and the permissible deviation is -2mm If the deviation is more than the permissible deviation (-2mm), correct thickness by applying as much as excess. 7.Repairing method Repairing methods for damaged parts are as such a. Spraying LPA and LPB on the damaged surface sufficiently. b. Reattach the damaged piece of wool onto the damaged surface. c. If the damaged piece of wool is completely detached, It can be repaired by mixing wools with the binders manually. d. In case of large damage, please contact with SPREFIX OR YOUR DEALER.