"CANLON" Forfens pre-applied waterproofing membrane and its application technology are the latest research and development results specifically for building’s waterproof pre-applied parts. This article will take you to learn about the Main functions and auxiliary materials of Forfens pre-applied waterproofing membrane .

 

This article is divided into three parts

1. Product introduction

2. The overall system and supporting auxiliary materials

3. Product technical parameters

 

1. Forfens pre-applied waterproofing membrane introduction

"CANLON" brand Forfens Smooth is self-adhesive pre-applied waterproof membrane, comprised of white polymer sheet (HDPE or TPO), pressure sensitive adhesive, and weather resistant coating layer. The side lap has self-adhesive and welding type, and self-adhesive type has a layer of factory lap on the back side of membrane. Welding type’s side laps is white polymer sheet (HDPE or TPO)

The weather resistant coating layer is a special developed organic chemical, which can react with poured concrete and has an effective bonding, it can also effectively protect pressure sensitive adhesive layer and prevent the stick. The backside factory lap can enhance the installation and significantly improve the overlapping strength. In the more extreme jobsite condition (such as rains, water, low temperature, etc.), it can also achieve effective connection on factory laps.

The installation of the membrane adopts the pre-applied method, which can realize a full bonding with the poured concrete and avoid the water migration.

 

 

2. The overall system and supporting auxiliary materials

 

Item	function
MST-105 Detail strip	Detail strip is composed of white HDPE sheet, polymer adhesive and release liner; it can be used for end laps connection.
MST202 double-sided tape	Double side tape is composed of polyester, polymer adhesive and release liner; it can be used for end laps connection, transition area connection between membranes of different types .
MST105 sanded tape	Sanded tape is composed by cross laminated HDPE,polymer adhesive, release liner and granular layer; it can be used for repair of broken areas, holes on pre-applied membrane, or enhancing the connection of overlapping.
PUS polyurethane sealant	It can be used for sealing of joint parts such as pile heads and anchors ,joint processing such as expansion joints, and  sealing at the termination of the waterproof layer.

 

 

3. Forfens pre-applied waterproofing membrane technical parameters

No.	Item		Indicator requirements
1	Tensile properties	tensile force	600(N/50mm)
		Tensile strength ≥	16MPa
		Elongation at break≥	550%
2	Tear strength		500N
3	Low temperature bending		Main material-35℃，no crack
4	Low temperature flexibility		Layer-25℃，no crack
5	Peeling strength with poured concrete≥	No treatment	2.0N/mm
		Water-Immersion treatment	1.0N/mm
		contaminated surface	1.0N/mm
		UV treatment	1.5N/mm
		Heat treatment	1.0N/mm
6	Peeling strength with poured concrete after immersion in the water≥		1.5N/mm
7	Peeling strength between two sheets (lap edge)	No treatment	1.0N/mm
		Immersion treatment	1.0N/mm
8	Heat aging（70℃ /168h）	Tensile retention rate ≥	90％
		Elongation retention rate ≥	80％
		Low temperature bending / °C	-23℃,no crack
9	Thermal stability	Exterior	No wrinkles, slips, runny
		Dimensional change rate ≤	±1.5%

 

Through the introduction of the above three points, do you have a deeper understanding of the products we provide? If you want to know more details about the product or company, please continue to pay attention to our website, we will bring you more industry product consultation.