← PACS Specialty SBR Waterproof In the print window, choose “Save as PDF”.
Technical Data Sheet TDS-PC-SW · Rev 01 · September 2026

PACS Specialty · Waterproofing

SBR Waterproof

Bonds, waterproofs and strengthens cement, concrete and plaster.

  • Bonding & waterproofing
  • Cement admixture
PACS Specialty SBR Waterproof
  • Thinning10 – 15% of cement weight
  • FinishMilky white liquid
  • Pot life30 – 45 minutes
  • Shelf life12 months, unopened

01Product description

PACS SBR Waterproof is a styrene-butadiene latex admixture that improves bonding, waterproofing and crack resistance in cement mortars, concrete and plaster. Use it as a bonding slurry, a mortar additive or a waterproof cementitious coating for repairs that last.

Recommended for

  • Roofs
  • Bathrooms
  • Basements
  • Tanks
  • Plaster and concrete repair

02Key features

  • Excellent bonding to old concrete
  • Total waterproofing of cement mixes
  • Reduces cracking and shrinkage
  • For crack filling and repairs
  • Easy to apply

03Performance

Drying time at 25°C

30 min1 h4 h1 day7 daysCureKeep moist for 24 hours

Apply with

  • Brush
  • Roller
  • Spray
  • Trowel
PACS Premium Asian Coating Systems
Karachi, Pakistan
ISO 9001:2015
quality-managed production
pacsofficial.com
TDS-PC-SW · Rev 01 · September 202601 / 02
Technical data & application SBR Waterproof
Technical Data Sheet
TDS-PC-SW
Scan for latest version

04Technical data

Product typeSBR latex admixture / bonding agent
AppearanceMilky white liquid
Specific gravity1.01 – 1.03 kg/L
Bonding slurry1 part SBR : 1 part water, mixed with cement to a creamy slurry
Waterproof mortar1 part SBR : 3 – 4 parts water as gauging liquid
Typical dosage10 – 15% of cement weight
Pot life of mix30 – 45 minutes
ApplicationBrush, trowel
CuringKeep moist for 24 hours
Shelf life12 months, unopened

Typical values at 25°C and 50% relative humidity. Practical coverage depends on surface texture, porosity and application method.

05How to apply

Surface preparation

  1. Remove loose concrete, dust, oil and laitance.
  2. Open up cracks and clean them out.
  3. Saturate the surface with water, leaving no standing water.

Application

  1. Brush the SBR–cement bonding slurry into the damp surface.
  2. Apply the SBR-modified mortar while the slurry is still tacky.
  3. For waterproof coatings, apply two slurry coats at right angles.
  4. Cure by keeping damp for 24 hours.
  5. Clean tools with water before the mix sets.

06Storage, health & safety

  • Wear gloves
  • Wear eye protection
  • Keep away from children
  • Protect from frost

Store between 5°C and 40°C in closed containers, out of direct sun. Do not allow to freeze. Wear gloves and eye protection when handling cement mixes. Keep out of reach of children.

The information in this data sheet is given in good faith, based on laboratory testing and practical experience. As conditions of use are beyond our control, no warranty is implied as to results. Premium Asian Coating Systems reserves the right to change this information without notice; please check that you have the latest issue.