Who Uses Sika Deer—and Why It Works for Them
Contractors
You need a product that stays sold after the job is done. With Sika Deer’s written 15-year warranty, you can confidently tell clients: “This roof won’t leak for over a decade.” We’ve seen contractors in Texas and Spain reduce callback rates by more than 70% since switching.
Property Managers
Managing 10+ buildings? Apply Sika Deer once, and eliminate annual re-coating budgets. The white version reflects up to 85% of solar radiation (per ASTM E1980), lowering rooftop surface temps by 25°C+—which cuts AC load in summer months.
Homeowners (High-End / DIY-Savvy)
If you’re investing in your home, don’t settle for “temporary fixes.” Sika Deer bonds permanently to concrete, metal, asphalt, and aged EPDM—no primer needed on most substrates. One 18kg pail covers ~45 m² at 1.2mm dry film thickness (typical for residential roofs).
Key Technical Advantages—No Fluff, Just Facts
| Feature | What It Means for Your Project |
|---|---|
| Elastomeric @ 320% elongation | Handles cracks up to 1.5mm wide without failure |
| 68% solids content | Thicker dry film per coat → fewer applications |
| UV & alkali resistant | Won’t chalk or degrade under sun or concrete alkalinity |
| Three application methods | Brush, roller, or airless spray—ideal for complex roofs |
| Available in Grey, Blue, White | White = energy savings; Grey/Blue = aesthetic matching |
Certifications: Complies with ISO 15711 (elastomeric coatings), CE marked, VOC < 50 g/L (EU compliant)
Sika Deer Waterproof Sealant Technical Datasheet
1. Product Overview
- Product Name: Sika Deer Waterproof Sealant
- Type: Elastomeric Roof Coating
- Application Method: Brush, Roll, Spray
- Coverage Rate: ~45 m² per 18kg pail at 1.2mm dry film thickness
- Color Options: Grey, Blue, White (White for heat reflection)
2. Physical Properties
| Property | Value |
|---|---|
| Solids Content (%) | 68% |
| Elongation (%) | 320% |
| Tensile Strength (MPa) | 1.2 |
| VOC Content (g/L) | <50 g/L (EU compliant) |
| Cure Time (hours) | Touch-dry: 2–4 hours; Full cure: 7 days |
| Flash Point (°C) | >90°C |
3. Performance Characteristics
- UV Resistance: High resistance to UV degradation
- Alkali Resistance: Suitable for application over concrete substrates
- Thermal Flexibility: Maintains integrity from -20°C to +80°C
- Waterproofing Capability: Effective waterproof barrier up to 15 years under proper installation conditions
4. Application Guidelines
- Surface Preparation: Ensure surfaces are clean, dry, and free of loose debris. For heavily cracked roofs, embed a polyester mesh before coating.
- Mixing: Stir thoroughly before use. Do not dilute.
- Application Temperature Range: Optimal application temperature is between 10°C and 35°C.
- Coat Thickness: Apply in two coats with a minimum dry film thickness of 1.2mm.
5. Safety Information
- Storage: Store in a cool, dry place away from direct sunlight. Shelf life is 12 months when stored properly.
- Handling: Wear appropriate PPE including gloves and safety goggles. Avoid skin contact and inhalation.
- Disposal: Dispose of according to local regulations.
6. Warranty Information
- Warranty Period: 15 years against material defects and waterproofing failure when applied correctly.
- Conditions: Warranty applies only if the product is installed following the manufacturer’s guidelines.
❓ FAQ Section
Common Questions About Sika Deer Waterproof Sealant
Q1: Can this coating be applied over existing asphalt roofs?
- A1: Yes, Sika Deer Waterproof Sealant can be applied directly over most aged asphalt roofs without needing a primer. However, ensure the surface is clean and free of loose debris. For heavily cracked areas, consider embedding a polyester mesh before applying the coating.
Q2: How many square meters does one 18kg bucket cover?
- A2: One 18kg pail covers approximately 45 m² at a recommended dry film thickness of 1.2mm. Coverage may vary depending on substrate porosity.
Q3: Is this coating UV resistant?
- A3: Yes, Sika Deer Waterproof Sealant has high UV resistance, making it suitable for long-term exposure to sunlight. The white version reflects up to 85% of solar radiation, helping reduce roof surface temperatures.
Q4: What is the drying time in humid climates?
- A4: In typical conditions, the coating will be touch-dry within 2–4 hours and fully cured after 7 days. In humid environments, ensure good air circulation during application and allow extra curing time if necessary.
Q5: Can I apply this coating in cold weather?
- A5: Optimal application temperature is between 10°C and 35°C. If temperatures drop below 10°C, the curing process may be delayed. We recommend avoiding application in freezing conditions.
Q6: What certifications does this product have?
- A6: Sika Deer Waterproof Sealant complies with ISO 15711 for elastomeric coatings and is CE marked. It also meets VOC regulations with less than 50 g/L.
