Sika Sikalastic-8800 403KG

Sika Sikalastic-8800 403kg – Hot Spray Applied Pure Polyurea Waterproofing Membrane

Sika Sikalastic-8800 is a two-component, pure polyurea waterproofing and protective coating membrane designed for demanding industrial, commercial and infrastructure applications. Applied using specialist heated two-component spray equipment, it forms a seamless, elastic and highly durable membrane with very rapid reaction and curing properties.

Developed for the protection and waterproofing of concrete and steel structures, Sikalastic-8800 provides excellent mechanical and abrasion resistance, high tensile strength and crack-bridging performance. Its rapid curing characteristics allow fast application and an almost immediate return to service, subject to the installation conditions and project requirements.

Key Benefits

• Two-component, pure polyurea formulation.
• Hot spray-applied to create a seamless waterproofing membrane.
• Very fast reaction and curing time.
• Almost immediate return-to-service potential.
• Excellent abrasion and mechanical resistance.
• Tensile strength greater than 20 N/mm².
• Elongation at break of approximately 400%.
• Static crack-bridging classification A5.
• Dynamic crack-bridging classification B4.2.
• Good resistance to many chemicals, subject to specific chemical compatibility.
• Suitable for concrete and steel applications.
• Performs in constant dry temperatures from -30°C to +100°C.
• Declared to EN 1504-2 as a surface protection coating for concrete.

Typical Applications

Sikalastic-8800 is designed for professional waterproofing, lining and protective coating applications, including:

Concrete Structures

• Industrial and manufacturing facility floors requiring abrasion-resistant protection.
• Car park decks and podium decks.
• Walkways and balconies.
• Cut-and-cover tunnels and submerged structures.
• Water-retaining structures in power plants.
• Secondary containment structures.
• Tanks, bunds and pits in sewage and wastewater treatment facilities.
• Concrete floors and structures requiring a seamless waterproofing layer.

Steel Structures

• Truck bed protective lining.
• Waterproofing and wearing layers on steel bridges.
• Steel structures requiring an abrasion-resistant protective coating.

Product Formulation, Pack Size and Colour

• Formulation: Two-component pure polyurea.
• Component A: Isocyanate, supplied in a 212kg drum (approximately 189 litres).
• Component B: Polyamine, supplied in a 191kg drum (approximately 189 litres).
• Total pack weight: Approximately 403kg.
• Mixing ratio: 1:1 by volume.
• Standard finished colour: Approximately RAL 7012 Basalt Grey.
• Alternative colour: Approximately RAL 7004 Grey, available on request.
• Component appearance: Part A clear liquid; Part B grey liquid.

Important: The two components have different weights but are supplied in approximately equal volumes. The required mixing ratio is 1:1 by volume, not 1:1 by weight.

Technical Information

Coverage and Consumption

The manufacturer's stated consumption is approximately 1.05kg per square metre per millimetre of applied thickness.

Actual material requirements will depend on the specified membrane thickness, substrate profile, surface preparation, application technique and site conditions. The thickness required must be established from the relevant Sika system specification and method statement.

Application Requirements

Sikalastic-8800 is a specialist hot spray-applied material. It is not suitable for application by brush, roller or conventional single-component spray equipment.

Application requires specialist two-component heated spray equipment capable of accurately controlling the mixing ratio, material temperatures and spray pressures.

Equipment and Material Preparation

• Use suitable two-component heated spray equipment designed for pure polyurea systems.
• Heat both components to approximately +70°C before application, following Sika's equipment and method statement requirements.
• Maintain a mixing ratio of 1:1 by volume.
• Thoroughly stir the Part B polyamine component using a suitable drum stirrer until a uniform colour and consistency are achieved.
• Regularly check the accuracy of the equipment's mixing and dosing system.
• Maintain the product temperature above +65°C during application.

Substrate Preparation

Substrates must be sound, sufficiently strong, clean and free from dust, loose material, oil, grease and other contaminants. Concrete preparation and priming must be carried out in accordance with the relevant Sika method statement and substrate-specific primer recommendations.

• Check substrate strength, moisture conditions and surface preparation requirements.
• Remove cement laitance, weak material and contamination using suitable mechanical preparation.
• Repair surface defects, blowholes and voids using appropriate repair materials.
• Remove all dust and loose material before application.
• Use the appropriate primer for the substrate and project conditions.
• Check the substrate temperature and dew point before spraying.

Environmental Conditions

• Ambient air temperature: -20°C to +40°C.
• Substrate temperature: -20°C to +50°C.
• Relative humidity: Below 85%.
• Dew point: The substrate and uncured applied material must be at least 3°C above the dew point to reduce the risk of condensation and surface defects.

Important Application Limitations

• Sikalastic-8800 must only be installed using suitable professional hot spray equipment.
• Application must follow the current Sika Product Data Sheet and Sika Method Statement.
• It is not resistant to biogenic sulphuric acid.
• UV exposure may cause yellowing or colour changes. This does not necessarily indicate a loss of membrane performance.
• Chemical resistance depends on the chemical, its concentration, temperature and exposure duration. Consult Sika Technical Services for specific compatibility information.
• The stated temperature resistance applies to constant dry conditions.
• Storage must be in original, unopened and undamaged packaging, in dry conditions between +5°C and +30°C, protected from direct sunlight.

Frequently Asked Questions

What is Sika Sikalastic-8800 used for?

Sikalastic-8800 is a hot spray-applied pure polyurea membrane used for waterproofing and protecting concrete and steel structures. Typical applications include industrial floors, car parks, tunnels, bridges, tanks, bunds, secondary containment and wastewater treatment facilities.

Is Sikalastic-8800 a one-component or two-component product?

It is a two-component pure polyurea system supplied as Part A (isocyanate) and Part B (polyamine). The components are mixed at a 1:1 ratio by volume using specialist heated spray equipment.

What is included in the 403kg pack?

The pack comprises approximately 212kg of Part A and 191kg of Part B, giving a combined weight of approximately 403kg. The two components are mixed at equal volumes, not equal weights.

What is the coverage of Sikalastic-8800?

The manufacturer's stated consumption is approximately 1.05kg/m² per millimetre of thickness. At 2mm thickness, the theoretical consumption is approximately 2.1kg/m², before allowing for substrate profile and application losses.

Can Sikalastic-8800 be applied by brush or roller?

No. Sikalastic-8800 is a hot spray-applied, two-component polyurea membrane and requires specialist heated two-component spray equipment.

How quickly does Sikalastic-8800 cure?

Sika gives an approximate gel time of 11 seconds and an overcoating interval of 1–2 minutes at +20°C. The stated final cure time is approximately 24 hours at +20°C. Actual curing and return-to-service conditions depend on the site environment and installation requirements.

What temperature can Sikalastic-8800 withstand?

Once cured, Sikalastic-8800 performs in constant dry temperatures from -30°C to +100°C. This is its stated thermal resistance range and should not be confused with the application temperature limits.

Technical Downloads

Always refer to the latest manufacturer's technical and safety documentation before specifying or applying the product.

Buy Sika Sikalastic-8800 from Clever Shield Coatings UK

Clever Shield supplies Sika Sikalastic-8800 for professional waterproofing, industrial coating and protective lining applications throughout the UK.

For availability, pricing and project quantities, contact our team:

Telephone: 01268 472358

Email: sales@clevershieldcoatings.co.uk

Important: Clever Shield Coatings UK supplies products only and does not design or specify waterproofing or coating systems. Customers must establish product suitability for their intended application and follow the latest manufacturer's technical data sheets, safety data sheets and method statements.