BestSeal AC408

Super elastic water-proofing membrane, one component

Advantages :
  • Hight tensile strength, bonding strength, high elongation (no primer required).
  • Able to seal wide cracks (up to 02 mm).
  • Weather resistant, anti-ultraviolet ray, reducing absorption of heat radiation, long lasting durability. 
  • Anti-penetration of the roots so it suitable for landscape flooring, flower beds ... 
  • Resistant to the impact of detergents, alkalis, animal and vegetable oils, sea water...
  • One component, easy to apply with popular tools such as brush,roller, sprayer... 
  • Water-based, non-toxic, does not pollute water sources (including running water) when in direct contact with the product.
  • Non-toxic, non-flammable, non-odour, environmentally friendly.


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BestSeal AC408 is a super elastic, one-component, Nano-technology Acrylic Copolymer waterproofing coating with extremely high adhesion strength.

BestSeal AC408 is perfect waterproofing membrane to use in the following areas: 

  • Eaves, balcony, flat roof, bathroom, tole roof ...
  • Basement, outdoor wall…
  • Water supply and drainage pipe, concrete, wood or metal structures … 
  • To fill the hole of metal sheet roofing, fill the crack concrete, fill joints…
  • Hight tensile strength, bonding strength, high elongation (no primer required).
  • Able to seal wide cracks (up to 02 mm).
  • Weather resistant, anti-ultraviolet ray, reducing absorption of heat radiation, long lasting durability. 
  • Anti-penetration of the roots so it suitable for landscape flooring, flower beds ...
  • Resistant to the impact of detergents, alkalis, animal and vegetable oils, sea water...
  • One component, easy to apply with popular tools such as brush, roller, sprayer...
  • Water-based, non-toxic, does not pollute water sources (including running water) when in direct contact with the product.
  • Non-toxic, non-flammable, non-odour, environmentally friendly.

Appearance / Color:

Thixotropic liquid / Various colors depending on specific product variant

Chemical content:
Acrylic Co-polymer modified with nano-technology and mineral powders, additive.

Density:

1.35 ± 0.05 kg/liter.

Consumption:

0.5 ÷ 0.8 kg/m2 /layer (depend on surface condition)

Tensile strength:
≥ 1.5 MPa (ASTM D412-02)
Elongation at break: ≥ 250% (ASTM D412-02)
Tear strength:
≥ 15 N/mm (ASTM D624)
Bonding strength:
≥ 1.0 MPa (ASTM D7234-05)

Preserve:

In cool, dry place (5oC ÷ 30 oC)

Shelf – life:

12 months upon manufacturing date

Packaging:
5 kg/pail; 20 kg/pail; 25 kg/pail


Surface preparation: 

  • Surfaces should be structurally clean, oil free, no grease or any other contaminants. 
  • Use water pressure jetting to finally wash. 
  • Before applying, the surface must be saturated with water (but no water remains) 

Placing:

  • Use a brush, roller or pressure nozzle to evenly distribute BestSeal AC408 over the entire prepared surface with the required amount in a certain direction. Curing material for about 6 to 8 hours (depending on weather conditions, climate). 
  • When applying the second layer, it should be done in a direction perpendicular to the first application to minimize the process of air entraining between the two layers of material.

Precaution: 

  • Properly stirring before use. 
  • DO NOT work on non-saturated or puddles surface.
  • DO NOT apply more than 1.2kg/m2 / layer. 
  • For the high absorbing surface, It is needed to dilute BestSeal AC408 with 10 ÷ 12 % clean water (by weight) in order to increase deeply absorbing capacity of material into substrate 
  • Apply at least two layers.Do not apply BestSeal AC408 while it rains. In case of raining when applying, stop the job and cover carefully all applied area.
  • For the surface area under constant mechanical stress during use, it must be covered a cement-sand layer (after 24 to 48 hours of application) to protect BestSeal AC408 layer against mechanical stress on materials surface. 
  • BestSeal AC408 is able to self-maintain by air, no water to humidify the applied surface (in the case of no protective cement-sand coating).

Cleaning:

  • Clean equipments immediately after the execution and before the mixture’s hardening. 

Safety: 

  • BestSeal AC408 is non–flammable light alkaline.
  • BestSeal AC408 is allergic to skin.
  • Protective clothing is highly recommended.
  • In case of contact with eyes, rinse immediately with plenty of clean water and seek medical advice.