Typar Spun Bonded Nonwoven Geotextiles

Heat-bonded nonwoven geotextiles (such as Typar®) are a variation of the nonwoven geotextile type. Typar® geotextiles use continuous polypropylene fibres that are heated together to form a continuous mat. Typar® geotextiles have good water flow performance and excellent retention of soil fines. While Typar® has been used to provide separation in paved and unpaved roads, it is predominately used in drainage applications. Such as trench drains, wrapping for perforated pipe, landscaping fabric, and combined with three-dimensional structures to create prefabricated drainage products. Typar® is used when very fine soil particles need to be retained. Typar® is best known as landscape fabric and is used extensively as a root barrier beneath paving stones or under decorative stones, bark or mulch.

 

Features

 

Stable matrix of polypropylene fibres heat bonded together

Able to retain finer soil fines than other geotextiles

Rolls are lighter and more compact than other nonwovens

Does not absorb water and become heavy when wet

 

Applications

 

Filters very fine soils such as clays and silts

Used as a weed barrier fabric in landscaping

Used as a filter sock material for perforated pipe

Can be used to combine separation and water filtration