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SOUND ZERO 2-PART

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					                                                   SOUND ZERO
                                                     2-PART
DESCRIPTION                                                 •   Timber floors or fibre cement sheeting must be
                                                                fixed according to the manufacturer’s instructions
Davco Sound Zero 2-Part is a two part flexible ceramic          and the relevant Australian Standard.
tile Underlay applied to floors prior to tiling to reduce   •   Porous/dusty surfaces must initially be primed
sound transmission within the tiling system and also            using Davco Ultraprime.
absorb minor movement within the substrate.                 •   Certain non-absorbent/contaminated surfaces
                                                                can easily be prepared for tiling via the use of
USES                                                            Davco Ultrabond. Refer to Ultrabond’s data sheet
                                                                for further details and suitability.
Davco Sound Zero 2-Part is ideal for use under              MIXING
ceramic tile, slate, stone, bamboo and hardwood floors
in many applications including;
• Office buildings                                          •   Davco Sound Zero 2-Part is a two component
• Airports                                                      product, which is mixed on site.
• Shopping centres                                          •   Each 30kg of the powder requires 20 litres of the
• Hotels                                                        liquid. Mix 1.5kg powder to 1kg liquid when
                                                                mixing by weight. Mix 2 parts powder to 1 part
• Homes
                                                                liquid when mixing by volume.
• Apartments
                                                            •   Firstly, stir the liquid thoroughly. Gradually add
• And other areas where sound transmission may
                                                                the powder to the liquid, stirring constantly, until
    be a problem.
                                                                all the powder is evenly mixed with the liquid.
FEATURES AND BENEFITS                                       •   Note: Hand mixing is not recommended. Use a
                                                                heavy-duty electric drill fitted with a mechanical
                                                                stirrer.
•   Davco Sound Zero 2-Part remains permanently
    flexible and forms a strong bond to concrete            APPLICATION
    slabs, levelling compounds, timber, heated floors
    and ceramic tiles.
                                                            •   Pour the mixed Davco Sound Zero 2-Part onto
•   Davco Sound Zero 2-Part is easy to bond to,
                                                                the surface and spread it using either a steel
    making subsequent adhesion of the ultimate floor
                                                                hand trowel or a squeegee, to a thickness of 4mm
    covering an easy task.
                                                                - 5mm.
•   Davco Sound Zero 2-Part can be used for both
                                                            •   If more than 5mm is required, apply the underlay
    internal and external applications. But when the
                                                                in layers ensuring that each previous layer has
    Sound Zero 2-Part is used in external or wet
                                                                thoroughly dried.
    areas, a waterproofing membrane such as
                                                            •   As a guide, the underlay at a thickness of 5mm
    Davco’s K10 Plus must be applied over the
                                                                will take 24 hours to cure at 200C.
    Sound Zero 2-Part.
                                                            •   Ensure the Sound Zero 2-Part has dried prior to
SURFACE PREPARATION                                             tiling.

                                                            Tile Adhesives
•   All surfaces must be structurally sound, dry, clean     • For maximum sound insulation, it is
    and free from dirt, dust, oil, grease, wax, paint,           recommended that one of Davco’s two part
    curing compounds and all other loose or                      adhesives are used. The best product for this
    contaminating materials.                                     application is Black Label. For specific details on
•   Masking of the skirting and other adjacent areas             the application of adhesive, refer to the individual
    is necessary in order to prevent them from being             product datasheet for more information.
    marked by the Underlay.                                 • Other flexible Davco adhesives such as Ultraflex
•   New concrete surfaces must be allowed to cure                and the SE-7 with Davelastic system can be
    for 6 weeks, and should have a wood float finish.            used, however the sound rating result will not be
•   Newly screeded surfaces must be allowed to cure              as effective.
    for at least 7 days and have a wood float finish.



                                                                                                      December 2005
                                                  SOUND ZERO
                                                    2-PART
Grouting                                                   TECHNICAL DATA
Grouting should not be carried out for at least 24 hours
after the completion of tiling. For grout joints 1-6mm
                                                           Properties:
wide use Davco’s Sanitized® Colorgrouts. For grout         Specific Gravity (Mixed):           0.9kg/L
joints 6-12mm wide use Davco Slate and Quarry Grout.
                                                           Working Time at 200C:       20 -30 minutes
Refer to the individual product datasheet for more
information.                                               Pot Life at 200C:              2 - 3 hours
                                                           Drying Time at 200C:              24 hours
PRECAUTIONS

•   Do not allow the Davco Sound Zero 2-Part liquid
    to freeze.
•   Do not use Davco Sound Zero 2-Part in
    temperatures above 400C and below 50C.
•   Do not expose the Davco Sound Zero 2-Part to
    moisture whilst curing.
•   For other uses or the use of Davco Sound Zero 2-
    Part over substrates/situations not mentioned in
    these instructions, contact your ParexDavco
    (Australia) Pty Ltd state office.
•   For a full MSDS on the product contact your
    ParexDavco (Australia) Pty Ltd State Office.

COVERAGE

One 20L drum of the liquid mixed with 30kg of the
powder covers approximately:
• 10m2 at a thickness of approximately 5mm.

CLEAN UP

Excess Underlay and tools can be cleaned up using
warm water while the Underlay is still wet.

PACKAGING

The Davco Sound Zero 2-Part system consists of 20
litre liquid/ 30 kg powder (3x 10kg).

SHELF LIFE

Up to 12 months in unopened containers stored in a
cool dry place.




                                                                                        December 2005
                                                                   SOUND ZERO
                                                                     2-PART
IMPACT SOUND RATING

The terms to describe the impact sound insulation rating of a floor when tested on-site, is the weighted
standardised impact sound pressure level (L’nT,w) plus the spectrum adaptation term (Cl). L’nT,w + Cl is
similar to the laboratory term L’n,w + Cl. For floors tested on-site, the impact sound insulation
requirements are as follows:
         • L’nT,w + Cl not more than 62 for floors separating dwellings and for floors separating
              dwellings from a plant room, lift shaft, stairway, public corridor, public lobby or the like, or
              parts of a different classification.

Davco Acoustic Underlay Performance

     STANDARD                                   TEST PANEL DESCRIPTION                          RESULTS
ISO 140-7:1998 &                  Tiles:                                               Weighted Standardised
ISO 717-2:1996                    •    10mm thick marble tile, 300mm x 300mm           Impact Sound Pressure
                                  Adhesive:                                            Level
                                  •    Davco Black Label 2-Part Adhesive nominally     L’nT,w + Cl
                                       3mm thick
                                  Underlay:                                            63 + -3 = 60dB
                                  •    Davco Sound Zero 2-Part, nominally 3 – 5mm
                                       thick.
                                  Substrate:
                                  •    Reinforced concrete slab (not post-tensioned)
                                       200mm thick, 40MPa
                                  Ceiling:
                                  •    10mm plasterboard on Rondo battens with
                                       50mm cavity above the living/dining room and
                                       300mm cavity above the kitchen area.
ASTM E1007-97 &                   Tiles:                                               FIIC Bare Floor
ASTM E989-89                      •    10mm thick marble tile, 300mm x 300mm           = 33
                                  Adhesive:
                                  •    Davco Black Label 2-Part Adhesive nominally     FIIC Underlay &
                                       3mm thick                                       Covering
                                  Underlay:                                            = 48
                                  •    Davco Sound Zero 2-Part, nominally 3 – 5mm
                                       thick.                                          Difference/Improvement
                                  Substrate:                                           = 15
                                  •    Reinforced concrete slab (not post-tensioned)
                                       200mm thick, 40MPa
                                  Ceiling:
                                  •    10mm plasterboard on Rondo battens with
                                       50mm cavity above the living/dining room and
                                       300mm cavity above the kitchen area.


DISCLAIMER

The use of this product is beyond the manufacturer’s control, and
liability is restricted to the replacement of material proven faulty. The
manufacturer is not responsible for any loss or damage arising from
incorrect usage. All workmanship must be carried out in accordance
with AS 3958.1 - 1991.
The information contained herein is to the best of our knowledge true
and accurate. No warranty is implied or given as to its completeness or
accuracy in describing the performance or suitability of the product for a
particular application. Users are asked to check that the literature in
their possession is the latest issue.




                                                                                                          December 2005

				
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Description: SOUND ZERO 2-PART