CMJ-702 SBS modified bitumen waterproof membrane

a)Good impermeability b)High and low temperature resistance c)Non toxicity and smell d)Long shelf life e)Ageing resistance

SBS modified bitumen waterproof membrane CMJ-702

 

 

Product detail

SBS modified bitumen waterproof membrane CMJ-702  is made by saturating the SBS modifier in bitumen, reinforced with polyester or fiberglass, finishing the upper face with fine sands, mineral slates(or grains)or polythene membrane and the lower surface with fine sands or polythene membrane. 

 

Characteristic

1.Good impermeability and ageing resistance.2.High and low temperature resistance.3.Non toxicity and smell.

4.Easy construction.5.Long shelf life.

 

Specification

No.	Item		PY		G
			Ⅰ	Ⅱ	Ⅰ	Ⅱ
1	Soluble Content/(g/m2) ≥	2mm	/		1300
		3mm	2100
		4mm	2900
2	Impermeability	Pressure, MPa ≥	0.3	0.2		0.3
		Keeping time, min ≥	30
3	Heat resistance, °C		90	105	90	105
			No slippering, no flowing, no dripping
4	Tension, N/50mm ≥	Longitudinal	450	800	350	500
		Horizontal			250	300
5	Elongation at the maximum tensile, %    ≥	Longitudinal	30	40	/
		Horizontal
6	Low temperature flexibility,   °C		-18	-25	-18	-25
			No crack
7	Tear strength, N    ≥	Longitudinal	250	350	250	350
		Horizontal			170	200
8	Phytotrons accelerating ageing	Appearance	First class
			No slippering, no flowing, no dripping
		Tension keeping, %   ≥ (Longitudinal)	80
		Low temperature flexibility, °C	-10	-20	-10	-20
			No crack

 

Attentions for Construction

Construction shall not be carried out in rain, snow or over 5 degree wind weather; Thereshall be sufficient safety protective facilities in construction site, place firefighting devices according to stipulations.

1)Clean the substrate using broom or high pressure dusty cleaner.

2)Apply primer.

3)Heat the membrane bottom using a high temperature flame gun.

4)Push forward while the primer and membrane oil melted.

5)Use a roller to push hard the membrane surface to ensure it stick firmly.

 

 

 

CMJ-702 SBS modified bitumen waterproof membrane