Lemax 3mm GY_APP

Lemax 3mm GY_APP

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DESCRIPTION

LEMAX waterproofing membrane are quality torch applied membrane manufactured from premium grade heavily modified bitumen.It has been developed and produced of plastomeric polymer bitumen membrane BPP, compound in distilled bitumen modified with high molecular weight polymers, reinforced with non woven polyester strand thus guaranteering superior performance under various conditions.

 

USES

LEMAX waterproofing membrane is ideal for use in wide range of waterproofing applications such as foundations, tunnels, basements, roofs, car park decks and other civil work.

-     All concrete roof and floor slab

-     Basement tanks

-     Car park deck slabs

-     Concrete retain structures

-     Subway

-     Tunnel

-     Brigde deck

-     Water treatment

-     Swimming pool

 

ADVANTAGES

LEMAX waterproofing  membrane has been designed with special regard to providing clients. The chemical resistance of LEMAX waterproofing membrane makes it particulary suitable for tanking application in areas where aggressive ground water conditions prevail.

-     Easy application by torch-on

-     High dimension stability

-     Absolute impermeability to water

-     Excellent high temprerature performance

-     Environmentally friendly

-     High mechanical properties 

 

TECHNICAL DATA SHEET

PRODUCT

LEMAX 3MM GY - APP

Compound

BPP

(bitumen modified plastomeric polymers)

Reinforcement

Non woven polyester strand

CHARACTERISTICS

EN DRC

UNIT

VALUE

TOL

Visible Defects

EN 1850-1

….

pass

….

Thickness

EN 1849-1

mm

3,00 

-10%

Weight and Length

EN 1848-1

m

1,00

10,00 

-1%

Straightness

EN 1848-1

mm

max 20

pass

Max Tensile Force (L/T)

EN 12311-1

N/5cm

500       

350 

-20%

Elongation (L/T)

EN 12311-1

%

40

40

-15 abs

Resistance to Tearing (L/T)

EN 12310-1

N

140

160

….

Resistance to Static Loading

EN 12730

Kg

15

…..

Resistance to Impact

EN 12691

mm

700

…..

Joint Strength (L/T)

EN 12317-1

N/5cm

 

 

npd

Peel Resistance of Joint (L/T)

EN 12316-1

N/5cm

 

 

npd

Pliability (Cold Flex)

EN 1109

0C

0

pass

Pliability (Cold Flex) – Aged

EN 1296

0C

 

npd

U.V Artifical Ageing (Visible Defects)

EN 1297

…..

 

…..

Watertightness

EN 1298

kPa

60

…..

Water Vapour Permeability

EN 1931

µ x 100

20

Npd

Water Vapour Permeability (Aged)

EN 1296

µ x 100

 

npd

Form Stability (New/Aged)

EN 1110

0C

120

 

pass

Dimensional Stability (L/T)

EN 1107-1

%

-0,25

0,15

pass

Root Resistance

MBP Group

% add

 

npd

External Fire Performance

EN 13501-5

class

F(roof)

npd

Reaction to Fire

EN 13501-1

class

F

npd

Granule Adhesion

EN 12039

%

 

npd

Upper Finishing

Mineral

Lower Finishing

PE

Rolls x pallet/Packaging

 

With shrinkable pe, on pallets

 

INSTRUCTION FOR USE

Surface preparation

The surface of concrete substrate shall be smoothed with a steel trowels  and  shall  be  removed  any  loosed aggregates  sharp projection sand Others likely to damage the membrane.

Smooth transition should be made at wall/parapet/floor slab junctions using sand/ cement mortar.

The surface must be cleaned by brush and keep clean condition during waterproofing  application.

 

Primer application

Apply primer with a paint brush or roller thinly and uniformly.Primer should be applied only the area to be covered with membrane in working day. Membrane can be covered 2 ~ 3 hours after  priming in normal  weather and concrete surface conditions.

 

Reinforcement of weakpoint

As the life of membrance can be effectively lengthenedby reinforcing at the   vulnerable  parts , the weak  points  such  as parapet   wall, around drain pipe.

 

Membrane application

To apply straightly the membrane on the concrete surface, unroll and align the roll with a straight line,and reroll  from  both edges  toward center of the roll.

During each stage, must be overlap the next layer by at least 10cm by width.The membrane roll back without  changing the orientation. The rolled Membrane  is slowly unrolled  again  while it’s surface is lightl  heated, transeversally.  By  means  of gas torch, thus causing surface melting and subsequent adhesion to  the surface.

Add heat the bottom of the membrane steadily and evenly with gas torch till the back side film  is  melted to  flow .  Then  stick the membrane to  the surface with pressure.

End joints should be made with a minimum of 10cm overlap.

On vertical or inclined surface, the membrane shall be laid from the lowest  level  to upwards.

 

Inspection, repair and protection

After finish membrane application, membrane must be inspected thoroughly before protective covering or backfilling.  

 

Storage

All products should be stored away from sources of heat, in the original unopened packing. It should be stored  horizontally,  not more than one pallet high.