SikaTop-107 Seal KH | Two component cementitious slurry for waterproofing and damp proofing

Product Category: Cementitious Waterproofing Brand: Sika Model Code: SikaTop®-107 Seal KH

Description

SikaTop®-107 Seal KH is a 2-component polymer-modified cementitious waterproofing slurry, consisting of a liquid polymer (Part A) and a cement-based powder (Part B). It provides rigid waterproofing and damp-proofing, suitable even for potable water systems.

Applications

Used for waterproofing of:

• Concrete structures

• Cement render and plaster

• Brickwork and blockwork

• Basements and retaining walls

• Water tanks and potable water systems

• Bathrooms and wet areas

• Swimming pools

Additional Uses

• Filling pores and blowholes

• Sealing hairline cracks (non-moving)

• Levelling mortar for repair works

Key Features

• Approved for potable (drinking) water

• Excellent waterproofing performance

• Easy application (brush, trowel, spray)

• No additional water required

• Strong adhesion to substrate

• Non-corrosive to steel

• Protects concrete from carbonation

Product Information

• Type: Cementitious waterproofing slurry

• System: 2-component (A + B)

Packaging

• 25 kg set

  • Part A: 5 kg liquid

  • Part B: 20 kg powder

Appearance

• Part A: White liquid

• Part B: Grey or white powder

• Mixed: Cement grey

Shelf Life

• 6 months

Storage

• +5°C to +30°C

• Dry, sealed packaging

Density

• Fresh: ~2.0 kg/L

Technical Data

• Compressive Strength:

  • 7 days: ~20 MPa

  • 28 days: ~30 MPa

• Water Absorption:

  • ~2.6%

Mixing Ratio

• Part A : Part B = 1 : 4 (by weight)

Consumption

• ~2.0 kg/m² per 1 mm thickness

• Typical system thickness: 1.5 – 2.0 mm (2 coats)

Layer Thickness

• Minimum: 0.75 mm

• Maximum: 2 mm per layer

Application Conditions

• Temperature: +8°C to +35°C

• Pot Life: ~30 minutes

Drying & Curing

• Between coats:

  • 30°C → ~3 hours

  • 20°C → ~6 hours

  • 10°C → ~12 hours

• Full curing before coating: ≥7 days

• Curing required: 3–5 days (keep moist)

Application Method

Mixing

• Shake Part A

• Add Part B slowly while mixing

• Mix ~3 minutes until uniform

As Slurry Waterproofing

• Pre-wet substrate (SSD condition)

• Apply first coat with brush

• Apply second coat cross direction

• Use minimum 2 coats

As Mortar (Optional)

• Reduce Part A by ~10%

• Apply with trowel for smooth finish

Substrate Preparation

• Surface must be:

  • Clean

  • Sound

  • Free from oil, grease, dust

• Concrete pull-off strength: ≥1.0 N/mm²

Preparation Methods

• High pressure water jet

• Sand blasting

• Mechanical cleaning

Important Notes

• Do NOT add extra water

• Avoid application in strong sun or wind

• Protect from rain during curing

• Minimum 2 coats required

Waterproofing Tip

• Use 3 coats for heavy water pressure areas

Limitations

• Not flexible (not for moving cracks)

• Not decorative (surface blooming possible)

• Avoid puncturing membrane after application

Performance Advantages

• Reliable rigid waterproofing system

• Suitable for water-retaining structures

• Strong adhesion and durability

• Cost-effective waterproof solution

• Ideal for Cambodia climate

Cleaning

• Clean tools with water immediately

• Hardened material → mechanical removal

Safety & Handling

• Follow SDS guidelines

• Use PPE

• Store properly

Additional Notes

• Lab-tested data

• Site conditions may affect results

• Local regulations may vary

Summary

SikaTop®-107 Seal KH is a high-performance cementitious waterproofing solution, ideal for basements, water tanks, wet areas, and concrete structures, offering strong adhesion, water resistance, and durability for long-term protection.