SERVIDEK®
Easy to use, cold applied, liquid waterproofing for trafficable podium decks and terraces.
Product Description
SERVIDEK® is a unique two component polymer modified bitumen, liquid waterproofing membrane. Cold applied by squeegee or trowel, the mixed liquid cures chemically to form a seamless, elastomeric waterproofing membrane for podium decks and terraces.
An appropriate protection sheet must be laid into “wet” SERVIDEK liquid membrane to allow for foot traffic and to provide protection from either hot and cold applied finishes.
Principal Applications
New and remedial buried waterproofing of:
- Podium Decks
- Car park roofs
- Terraces
- Balconies
Design
SERVIDEK is satisfactory for use on trafficked decks subject to vehicular and pedestrian traffic when protected with an appropriate protection membrane.The system must be overlaid with a suitable wearing course, e.g. concrete, paving slabs, block pavers, gravel, etc. Full thickness overlays can be laid up to 30 days after the waterproofing is installed.
SERVIDEK can be used on concrete or steel substrates without primer.
Advantages
- Damp surface tolerant - up to 15% damp surface tolerance enabling application in a wide
- weather window
- No priming - SERVIDEK waterproofing is applied directly to clean substrates
- Elastomeric - will accept cracking in substrates caused by deflection or shrinkage
- Low temperature performance - adhesion and flexibility properties maintained in -40 °C service conditions
- Critical path - finishes can be installed 4 hours after waterproofing installation
- Simple application by squeegee/trowel - no specialist application equipment
- Proven performance - over 25 years track record
- Hot asphalt can be applied as a finish when protected with GCP Applied Technologies’ Servipak boards. See Servidek/Servipak System TDS for details.
- European Technical Approval (ETA) – CE marked with independently audited factory production control (when used together with GCP’s Servipak protection)
Installation
General
SERVIDEK application ambient temperature range is between +4 °C and rising and maximum +35 °C. Substrate temperature should exceed the dew point by a minimum 3 °C. Application outside this temperature range could result in shortened working life and more difficult application.
The application should not be made if rain or frost is imminent or in conditions where it is likely to freeze before the liquid membrane cures.
Application Equipment
- Broom or airline
- Sharp knife
- Chalk and string line
- 38 mm x 150 mm timber
- Rubber bladed squeegee
- Steel or rubber trowel
- Heavy hand roller
| Supply | |
|---|---|
|
Servidek |
22.5 litre pack (Part A & B combined) |
| Coverage | 10-12 m2 per mixed pack |
| Palletisation |
Part A - 18 x 20.47 kg buckets per pallet Part B - 72 x 4.5 kg buckets per pallet |
| Storage | Under cover in original sealed containers above +5 °C and below +27 °C |
| Shelf life | 12 months |
| Physical Properties | ||
|---|---|---|
|
Property |
Typical Value |
Test Method |
| Capacity to bridge cracks (fatigue resistance) at-30 °C | Pass | EN 14224: 2010 |
| Water-tightness | Pass | EN 14694: 2005 |
| Adhesion to damp, 7 day old concrete |
No significant change vs. dry, 28 day old concrete control |
EN 13596: 2004 |
| Servidek-Materials in contact (Change in mass) |
Water (WA) −1% Alkali (Al) −1.3% |
EN 14223 |
| Servidek®-Materials in contact (Resistance to static loading) |
Water (WA) L4 Alkali (Al) L4 |
EOTA TR 007 |
All declared values shown in this data sheet are based on test results determined under laboratory conditions and with the product sample taken directly from stock in its original packing without any alteration or modification of its component parts.
Surface Preparation
Concrete Surfaces
Shall be levelled and screeded to form a uniform surface. On hardening and after bleed water evaporation, the concrete should be trowelled to produce a hard dense surface free of screed marks and exposed aggregate. Finally, lightly texture the surface with a wooden float or equivalent.
Maximum deviation in surface profile shall be 10 mm over a 3 m
gauge length and any abrupt irregularities over 3 mm shall be removed or filled with high strength repair mortar.
The concrete deck should be clean, and free from ice, frost, laitance, loose aggregate, oil, grease, moss, algae growth, dust and any other contaminants that could decrease adhesion between the concrete and Servidek.
Damp surfaces are acceptable but any surface water, up to max 15%, should be removed by sweeping or with air lances.
Green/fresh concrete - apply to green concrete only when necessary. If concrete curing compounds/membranes that could impair waterproof membrane adhesion have been used, test a sample of Servidek® for adhesion to determine if removal is necessary. Exposure time limit for protection layer should be confirmed with the manufacturer. It is best practice to install finishes within 30 days.
Steel Surfaces
Remove all rust, scale, oil, grease and other contaminants from steel surfaces by grit blasting. Where required, steel surfaces may be primed with a zinc/epoxy corrosion inhibitor. Contact GCP Technical Services for further details.
Mixing Servidek
DO NOT DIRECTLY HEAT, POWER MIX OR USE PART MIXES.
When the ambient temperature is below +10 °C, storage at +20 °C for several hours will ease mixing and application.
Mix both of the components throughly before adding them together. After mixing, pour all of the Part B (small tub) into the Part A and stir with a timber ‘paddle’ in a folding motion until a consistent colour, free from streaks, is obtained. Ideally this should take no longer than two minutes. Mix and use one unit at a time, applying the Servidek immediately once mixed. Pot life is approximately 20 minutes at +20 °C.
Application of Servidek
Pour the mixed Servidek on to the deck surface and spread with a squeegee at a rate of 10-12 m2/22.5 lit unit, depending on substrate surface and temperature.
Day Joints
Always leave a 50 mm leading edge of Servidek compound to enable subsequent overlapping. Seal the exposed edges of protection with Servidek compound. Commence work the following day by ensuring the 50 mm leading edge is clean and dry, then overlap with fresh Servidek compound.
Protection/membranes must be laid while the Servidek compound is still wet and laid progressively to minimise applicator trafficking until the Servidek has cured. The protection must be overlapped to ensure continuous protection to the Servidek. Where gaps occur between protection/membranes, these must be filled with Servidek prior to sealing all overlaps.
Where protection abut the parapet, pipe bays or abutments they should be pre-measured, and accurately cut to size by incising with a sharp knife and breaking on edge. The joints between the protection/membranes should be dry.
It is advisable to seal the exposed edge of the protection at the end of each working period to prevent the ingress of moisture overnight, by tooling the Servidek compound against the exposed edge.
Minimum cure time for Servidek is 4 hours, after which deck finishes should be applied as soon as possible. It is good practice to ensure that the protection/membranes are fully bonded to the Servidek by firmly rolling with a heavy hand roller before final application of deck finishes.
Repairs To Damaged Servidek
Minor repairs:
Eg. stone penetration through membrane and protection.
Cut a section of new protection a minimum of 50 mm beyond the damaged area. Using this section as a template, position over the damaged area and cut around the template through the protection. Remove the damaged protection/membrane and debris or damaged section of membrane. Mix and apply fresh Servidek and reinstate the new section of protection. Apply Servidek to lap the protection repair patch. A heated spatula/trowel can be used to remove the damaged board.
Major repairs:
Repeat the procedure for minor repairs, ensuring a minimum 50 mm Servidek to Servidek lap is achieved before replacement boards are laid.
Where extensive damage or contamination has occurred it is necessary to remove all damaged Servidek and protection from the deck by heating and scraping off.
Apply fresh Servidek and protection/membrane as detailed above for minor repairs.
Health and Safety
Read the product label and SDS (Safety Data Sheet) before use. Users must comply with all risk and safety phrases. SDSs can be obtained from GCP or gcpat.com.
gcpat.uk | United Kingdom customer service: +44 (0) 1480 478421
We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate, and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations, and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use that would infringe any patent, copyright, or other third party right.
SERVIDEK is a trademark, which may be registered in the United States and/or other countries, of GCP Applied Technologies Inc. This trademark list has been compiled using available published information as of the publication date and may not accurately reflect current trademark ownership or status.
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This document is only current as of the last updated date stated below and is valid only for use in the United Kingdom. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on www.gcpat.uk. Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.
Last Updated: 2022-11-24
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