NBS Source
Newton Newtonite 801 Mastic - Sealing Mastic

Application

  • To seal fixing plugs to Damp Proofing Membranes, including Newtonite 803, Newtonite 803 Mesh Membrane, and NewLath 805 Mesh Membrane.
  • For sealing around service penetrations and protrusions through the substrate/membrane.
  • As a general, high performance and multipurpose sealant in the building industry.

Description

A multipurpose silicone sealant primarily used with the NewLath 805 Mesh Membrane and Newtonite 803 Membranes – applied to the plug before fixing into the membrane, 801 Mastic seals the penetration and prevents bridging between the damp substrate and new internal surface.


Applied to the fixing plugs before they are fitted, Newtonite 801 Mastic serves so as to seal the penetration and stop the occurrence of a ‘bridge’ between the damp or stained substrate and the new internal surface. Newtonite 801 Mastic has a high resistance to both ageing and extremes of temperature, as well as achieving a high adhesive strength, without primer, on the majority of materials used in the building and engineering industries.


Features and benefits:

  • Prevents efflorescent salts and staining to the finished surface.
  • Seals the fixing plug to the membrane.
  • Obtains a high adhesive strength without a primer.
  • Applicable to most materials used in the building and engineering industries, including, but not limited to laminated and double glass, aluminium, steel, stainless steel, anodized steel, treated wood, and polyvinyl chloride (PVC).
  • Also compatible with alkali substrates such as concrete and brick.
  • Applicable in temperatures as high as 150°C and as low as -50°C.
  • High resistance to ageing.
  • Non-toxic.
  • Solvent-free.
  • 25 cartridges of 310 ml per box.

General information

Color

White

Finish

Smooth

Flexible, smooth, white sealant

Material

Polysiloxanes - Silicone sealing mastic.

Shape

Formless

Uniclass

Pr_30_31_76_77 Silicone construction joint sealantsPrimary

CAWS

J40/290 High-density polyethylene/ polypropylene studded cavity drain membrane

J40/47 High-density polyethylene/ polypropylene studded cavity drain membrane

Product range

Damp Proofing Systems

Specification data - Silicone construction joint sealants Enhanced data

Standard

EN 15651-1:2012.

Material

Polysiloxanes.

Colour

White.

Fire resistance

Class E - EN 13501-1:2007.

Skin forming time (23°C at 50% relative humidity)

25 minutes.

Vulcanisation rate (23°C at 50% relative humidity)

2.5–3 mm every 24 hours.

Density

1.36 g/ml.

Installation temperature

+5°C to +40°C.

Hardness (shore A)

20 ISO 868.

Elastic recovery

> 90% ISO 7389.

Deformation capability

25%.

Modulus at 100% elongation

0.32 N/mm² ISO 8339.

Elongation at break

350% ISO 8339.

Volatile organic compounds

<100 g/L.

Temperature resistance

-50°C to +150°C.

Environmental information

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Recyclability

0

Recycled content

0 %

Literature

Newtonite 801 Mastic TDS

Newtonite 801 Mastic TDS

Third party certifications

DoP

DoP

Newtonite 801 Mastic DoP