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DESCRIPTION
Everflex AC50 Acoustic
Sealent and Adhesive is a high strength, permanently flexible acoustic sealant and adhesive
specifically formulated for sealing and bonding plasterboard and other
insulation boards to common substrates.
BENEFITS
- Permanently flexible/high grab
- Adheres to most surfaces.
- Mould resistant.
- Non flammable
- Overpaintable.
- Easy clean up
AREAS FOR USE
- To form an acoustic barrier by sealing gaps between plasterboard
walls, floors and ceilings and in dry lining applications.
- As an adhesive to bond plasterboard to plasterboard, wood and metal
studding and direct to blockwork.
- For sealing and bonding most other Kraft lined insulation boards.
LIMITATIONS
- Damp or humid conditions will significantly extend the cure time.
- Do not attempt to abrade when cured.
- Do not overpaint until product has fully cured. This will normally be 24 hours but may be 4-5 days in damp, cold or humid conditions.
- Do not apply below 5`C
- For overhead boarding applications, always use in conjunction with
mechanical fixings.
SURFACE PREPARATION
All surfaces must be clean and dust free. All loose or flaking surface coatings, and old sealant and mastic joints, should be removed before application. Highly porous substrates such as new plaster should first be primed with Everbuild PVA bond diluted 1:4 with water. Surfaces may be slightly damp, but not wet. NOTE: THIS WILL SLOW THE CURE.
APPLICATION
900ml size: Fit
cartridge into a 1ltr mastic gun. Cut nozzle to required length and puncture
inner membrane seal before applying.
C4 Packs: Cut the tip
of the cartridge taking care not to damage the thread. Apply nozzle and cut cleanly at an angle
of 45’
Use as a sealant: Always
cut nozzle to a size slightly larger than the gap to be sealed.. Apply to gap,
slightly overfilling and finish smooth with a caulking tool or filler knife.
Clean up any excess with a damp cloth within 30 minutes of application.
Use as an adhesive for direct bonding to large
surfaces: Cut nozzle to provide a bead of
approximately 9-10mm diameter and apply a continuous bead to one surface at 250-350mm
centers. Apply board immediately to surface and tamp down. Provide temporary
support until cured.
Use as an adhesive for bonding to studding: Apply a continuous bead to studding and apply board immediately into
position. Do not apply more than one boards width of studding at one time.
Provide temporary support until cured.
SPECIFIC
Form |
Ready
to use thixotropic paste |
Specific Gravity |
1.6
- 1.7 |
Elongation at Break (%) |
100-200% |
Hardness (Shore A) |
Approximately
40 |
Tack Free Time |
15
to 60 mins, dependent on thickness, ambient temperature and humidity |
Full Cure |
1
to 5 days, dependent on thickness, ambient temperature and humidity |
Solids Content |
82% |
Slump Resistance |
No
slump at 25°C when placed in a 20mm x 10mm
vertical channel |
Application Temp. Range |
+5°C to +40°C |
Service Temp. Range |
-15°C to +70°C |
Chemical Resistance |
Dilute Acids - Fair
½ Dilute
Alkaline - Fair |
| |
Aliphatic Hydrocarbons - Fair
½ AromaticHydrocarbons - Poor |
Movement Accommodation |
Low
to medium (+/- 7.5%) |
Durability |
Up
to 15 years when used as recommended |
Shelf Life |
Up
to 24 months when stored in unopened cartridges under cool dry conditions. AVOID FROST |
Compatibility |
Can
be used in contact with most building and decorating materials but should
not be used against bituminous materials. |
HEALTH
AND SAFETY
- Do not ingest
- Keep out of reach of
children.
- Product of low hazardous
nature.
- Remove from skin with soap and water.
STORAGE
Store in cool dry conditions and protect
from frost.
SHELF
LIFE
9 months from date of manufacture. |
