Waterproofing Bitumen Membrane: ISOGUM

The products with thickness from 2 to 5.5 mm membrane consist of single or dual layer(s) are impregnated with modified bitumen. The layers can be thermo-bond/needled polyester mat and glass fiber tissue.
Modified bitumen consists of bitumen and modifiers such as Atactic polypropylene (APP) or Styrene-Butadiene Styrene (SBS). APP gives rigidity and acceptable tear resistance whereas rubber additive gives more elastic benefits. Our products which containing SBS are called ISOGUM S and the others with APP are called ISOGUM BBP (Type A).
Due to the different type of bituminous mixture and also to the reinforcement layers, the waterproofing membranes offers different properties of mechanical resistance, elasticity, cold flexibility and durability.
Thin and transparent film is stuck to bottom of the felt during manufacturing on all torch-on products which hinders sticking of produced felt to itself when rolled up during the packaging process.
To decrease the destructive effects of UV-ray of sunlight, protecting from physical damage, the products are covered with colorful slate flake mineral or are faced with aluminum foil. This also ensures easy unrolling of the product during installing.span
Applications
ISOGUM is typically used for water insulating of:

• spanRoofs
• spanTerraces
• spanCourtyards
• spanBasement walls
• spanTunnels
• spanBridges
• spanSanitary service

ISOGUM can also be used for coating pipe lines to protect them against rust and corrosion.

There are different types of waterproofing bituminous membrane ISOGUM which are introduced as following:

Double layer ISOGUM
This type of product consists of two reinforcement layers, glass fiber tissue and polyester mat. The product is produced in two types, plain and aluminum foil faced. Plain product only has one thin polyethylene film for easy unrolling. The aluminum foil reflects sunlight; hence the products are stable in contact with UV rays of sunlight. The double layer ISOGUM is produced in 3 and 4 mm thickness which called LA3 and LA4 respectively.

Single layer thermo bond ISOGUM
For creating higher tensile strength of the product, Iran Glass Wool Co. has offered one-layer ISOGUM including thermo bond polyester felt. This product is less flexible but has outstanding tensile strength and is applicable where the high tensile strength is demanded.

Stitch-bonded polyester ISOGUM (LP4)
In this type of product, the tensile strength of the stitch-bonded polyester is used and the glass fiber tissue is removed. The lower softening point and using more bitumen, combined with the proper weight, makes it easy to install this product on walls and sloping surfaces. It should be noted that the use of aluminum foil with a width of one meter as a surface cover will preserve the integrity of the appearance of the insulation, especially in the exterior walls of the building.

 T2 ISOGUM
Having thickness of 2 mm, this type of ISOGUM has only one-layer reinforcement of glass fiber tissue. This product is applicable for water insulation of building foundation.

Technical information

Sand/Slate surface ISOGUM
The top face of this product is covered by colorful sand, slate, or other mineral to ensure attractive view of installed product. Sand/Slate surface ISOGUM is applied for pitched roof, façade, and anywhere that beauty of view is an issue. The product is available in versatile slate and divers color.

Technical information

Bituminous geomembrane (BGM)
BGM is a prefabricated reinforced bituminous geomembrane. The 4 mm thickness product consist ofa geotextile reinforcement layer which is impregnated and coated with an elastomeric modified bitumen binder. This product is used for lining ponds, dams, tunnels, capping municipal and industrial wastes, including radioactive wastes. BGM has also been used to effectively line reservoirs and lagoons containing brine and other types of contaminated effluents. This material has been used to line ponds that store liquids ranging from potable water to industrial effluents. Having the versatility and longevity of the material, the BGM is ordinary used in environmentally sensitive applications.

Specifications

• spanExcellent adhesion to the surface
• spanHigh tensile strength
• spanResistant to acids, bases, and other chemical
• spanFlexible, having  acceptable Young Modulus
• spanResistant to weather condition and UV rays
• spanHigher mechanical propertied and lower damage respect to polymeric geomembrane due to encountering to sharp and cutting things

Surface preparation
As with all surface coatings, good preparation is of paramount importance to the success and long-life of the system. Ensure that the surface to be treated is dry and sound, free of loose, dusting or flaking particles and free from contaminants such as grease and fungus. Defects such as cracks, broken mortar joints, etc. are to be repaired prior to primer application. Since ISOPASTA and ISOFONDO are liquid, coating of out of reach surfaces is done easily.

ISOPASTA
This product is a water emulsion bitumen product which is paste shape and after drying is not water soluble anymore. Coating of concrete with ISOPASTA prolongs life spanof concrete. Mixed with chopped glass fiber, ISOPASTA can act as a water insulating membrane by itself. Regardless to the quality of surface, using of ISOPASTA increase the adhesion force of ISOGUM to the surface. ISOPASTA can be dilute with adding appropriate amounts of water.

Packing and storage

• spanISOPASTA is delivered in 10, 14, and 20 kg barrels
• spanISOPASTA must be kept sealed, under ceiling, and above 4 °C

Technical information

ISOFONDO
ISOFONDO is a solvent based bitumen primer which forms a sticky and waterproof bituminous layer after solvent evaporation. ISOFONDO is consumed for sealing and waterproofing, protecting of cement, metal pipes, and tanks against corrosion and deterioration. It can also be used as adhesive for stick of galvanized or aluminum foils. ISOFONDO can be dilute with adding appropriate solvent (thinner/gasoline) to it.

• span  ISOFONDO is delivered in 10, 14, and 20 kg barrels
• spanISOFONDO must be kept sealed, under ceiling, and the temperature not to exceed 35 °C

 
Technical information