LANKO® 451 Roof Seal

12 months from date of production stored properly in undamaged, original, sealed packaging.

Store in dry condition, protected from direct sunshine.

~ 1.3 kg/L

~ 56%

~ 43%

Roof Coating*
LANKO 451 ROOF SEAL (SOVACRYL) is applied in 2 or 3 coats

*For partial reinforcement, LANKO GLASS FIBER MESH is applied at areas with high movement, irregular substrate or to bridge cracks, joints and seams on the substrate as well as for details.
*For primer, please refer to substrate.

Roof Reinforcement
LANKO 451 ROOF SEAL (SOVACRYL) is applied in a base coat layer, reinforced with LANKO GLASS FIBER MESH and sealed with 1 - 2 top coats of LANKO 451 ROOF SEAL (SOVACRYL).

Note:

1. Do not apply more than of 0.75 kg/m² of LANKO 451 ROOF SEAL (SOVACRYL) per coat for layer without reinforcement.

2. These figures are theoretical and do not include for any additional material required due to surface porosity, surface profile, variations in level and wastage.

> 1 MPa at 7 days (ASTM D412)

> 0.5 N/mm² at 7 days (adhesion to concrete, EN 1542)

+5°C min. / +60°C max.

+5°C to +35°C

5% min./ 80 % r.h. max.

+5°C min. / +60°C max.
≥3 °C above dew point

≤ 6 % pbw
No rising moisture according to ASTM (Polyethylene-sheet).

Note: These figures are theoretical and do not include for any additional material required due to surface porosity, surface profile, variations in
level and wastage. For the Waiting Time / Overcoating, please refer to the PDS of the appropriate cleaner and primer. Other substrates must be tested for their compatibility. If in doubt, apply a test area first.

Note: Times are approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.

Select the most appropriate equipment require for the
project.
▪ Brush : Soft bristle brush
▪ Roller : "non-fuzzy" roller
▪ Airless spray

1. Surface must be clean and without any trace of oil.
2. Repair damaged concrete with LANKO 731 STRUCTURE REPAIR
3. Repair cracking that still spreading or experience movement with LANKO 603 POLYURETHANE.
4. The joint between wall and floor should be filled or protect by making a cornice.
5. Ensure that the substrate (tile, metal, cement sheet) is installed according to manufacturer standard before applying LANKO® 451 Roof Seal
6. Wall and Floor
   - New rendered surface must be at least 7 days.
   - New concrete surface must be at least 7 days.
   - Existing concrete surface must be clean without mould or algae. Then wait for the surface to dry at least 24 hours.

Stir the product for 1 minute in bucket before applying. LANKO® 451 Roof Seal can be applied directly from the bucket with brush or roller.

Prior the application of LANKO® 451 Roof Seal, the priming coat must be cured (tack-free).
For the Waiting Time / Overcoating, please refer to the PDS of the appropriate primer. Damageable areas (door frame) have to be protected with an adhesive tape.

Roof Coating : Apply the primer follow the substrate pre-treatment table.

1. Apply first coat of around 0.7 kg/m²  of LANKO 451 ROOF SEAL (SOVACRYL).
2. Leave it dry follow the waiting time / overcoating table.
3. Apply the top coat with one or more additional coat of LANKO 451 ROOF SEAL (SOVACRYL) around 0.7 kg/m² per coat and leave it dry.

Roof Reinforcement : LANKO® 451 Roof Seal is applied in combination with LANKO GLASS FIBER MESH. Apply the primer follow the substrate pretreatment table.

1. Apply first base coat around 0.7-1.0 kg/m² of LANKO 451 ROOF SEAL (SOVACRYL).
2. Roll in the LANKO GLASS FIBER MESH and ensure that there are no bubbles or creases. Overlapping of the reinforcement minimum 5 cm.
3. Apply additional base coat of LANKO 451 ROOF SEAL (SOVACRYL) around 0.3-0.5 kg/m²  per coat right into the wet fiber mesh to achieve the required film thickness. The entire application shall happen while LANKO 451 ROOF SEAL (SOVACRYL) is still liquid, wet in wet.
4. Repeat step 1-3 until the roof area is waterproofed.
5. After two coats are dry, apply the top coat with one or more additional coat of LANKO 451 ROOF SEAL (SOVACRYL) around 0.6-0.7 kg/m² per coat.

Please note, always begin with details prior starting with waterproofing the horizontal surface.

Clean all tools and application equipment with water immediately after use. Hardened / cured material can only be removed mechanically.