Sikalastic®-510 AP

APPROVALS / STANDARDS

Singapore Green Building Product (Leader) Cert. No. SGBP 3427

Chemical Base

Modified acrylic dispersion

Shelf Life

12 months from date of production

Storage Conditions

The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging.

Ambient Air Temperature

+8 °C min. / +40 °C max.

Relative Air Humidity

80 % maximum

Dew Point

Beware of condensation. The substrate and uncured applied roof material must be at least +3 °C above dew point to reduce the risk of condensation on the surface finish.

Substrate Temperature

+8 °C min. / +40 °C max.

Substrate Moisture Content

≤ 6 % parts by weight.
The following test methods can be used: Sika®-Tramex meter, CM-measurement or Oven-dry-method. No rising moisture according to ASTM (Polyethylene-sheet).

Drying Time

Apply one coat at a time, allowing interval of 4 to 8 hours between coats.

Drying times will also be increased by restricted air movement.

Consumption

Approximately 36 m² per 25 kg for 1 coat at WFT @ 0.5 mm

EQUIPMENT

Select the most appropriate equipment required for the project:

Substrate Preparation Equipment

• Abrasive blast cleaning / planing / scarifying or grinding equipment.
• Manual or mechanical wire brushes.
• High pressure power washer.

For other types of preparation equipment, contact Sika Technical Services

Application Equipment

• Brush: Soft bristle
• Roller: Solvent resistant, “non-fuzzy”

SUBSTRATE PREPARATION

General

• All dust, loose and friable material must be completely removed from all surfaces before application of the product and associated system products, preferably by industrial vacuuming equipment.
• To confirm adequate surface preparation and Sikalastic®-510 AP adhesion, carry out a small trial before full application together with adhesion tests as required.

Cementitious substrates

• Substrate must be sound, clean, dry and free of all contaminants such as dirt, oil, grease, coatings, laitance, surface treatments and loose friable material.
• New concrete must be cured for at least 28 days.
• Substrates must be prepared mechanically using suitable substrate preparation equipment to remove cement laitance and achieve an open textured gripping surface profile suitable for the product thickness.
• High spots can be removed by grinding.
• Weak cementitious substrates must be removed and surface defects such as blow holes and voids must be fully exposed.
• Repairs to the substrate, filling of joints, blowholes/voids and surface levelling must be carried out using appropriate products from the Sikafloor®, Sikadur® and Sikagard® range of materials. Products must be cured before applying Sikalastic®-510 AP.

Brick and stone

• Mortar joints must be sound and preferably flush pointed.
• Use localised Sika® reinforcement over joints.

Ceramic, roof tiles

• Ensure all tiles are securely fixed.
• Replace any broken, loose or missing sections.
• Power wash the surface.

Metal

• Metals must be in a sound surface condition.
• Abrade exposed surfaces to a bright metal finish.
• Use localised Sika® reinforcement over joints and fixings.
• Use Sikalastic®-3 Primer XP to ensure proper adhesion and protect metal from corrosion.

Wood

• Wood and wood-based panel roof decks must be in good structural condition, firmly adhered or mechanically fixed.

Paints/Coatings

• The existing material must be sound and firmly adhered to the substrate.
• Remove any oxidized or loose layers.
• To confirm compatibility with Sikalastic®-510 AP, carry out a small trial before full application.

Existing Sikalastic®-510 AP

• The existing Sikalastic®-510 AP must be sound and firmly adhered to the substrate.
• Carry out adhesion tests to confirm adhesion values.
• Power wash to clean the surface.

APPLICATION

INSTALLATION PROCEDURE

Reference must be made to further documentation where applicable, such as relevant method statement, application manual and installation or working instructions.

Important: Confirm waiting /overcoating times are achieved before applying subsequent coats / products.
Primer

Important: Make sure the primer on the substrate is continuous and pore free.

1. Pour the mixed primer onto the prepared substrate.
2. Apply the product evenly over the surface with a brush or fleece roller. Ensure a continuous coat covers the substrate.
3. Back roll the surface in two directions at right angles with a fleece roller.

ROOF COATING

Important: Apply 2 coats at the same consumption.

1. Apply the product evenly over the surface by airless spray, brush or short piled roller at the required consumption rate in 2 directions at right angles to each other.

ROOF WATERPROOFING

1^st Coat

1. Apply the product evenly over the surface by brush or short piled roller at the required consumption rate in 2 directions at right angles to each other.

Reinforcement

Important: Reinforcement overlaps must be a minimum of 50 mm.

Note: It is recommendation to work 1.0 m at a time lengthways applying the 1^st coat and embedding the reinforcement.

1. Roll in the appropriate reinforcement whilst Sikalastic®-510 AP is still wet ensuring there are no bubbles or creases in the reinforcement.
2. Allow to dry for at least 2 hours.

2^nd Coat

1. Pour the product onto the reinforced 1^st coat and apply evenly by brush or short piled roller at the required consumption rate at right angles to the previous coat.

3^rd Coat

1. Apply evenly by brush or short piled roller at the required consumption rate at right angles to the previous coat.

CLEANING OF TOOLS

Clean all tools and application equipment with Thinner C immediately after use. Hardened material can only be removed mechanically.