Dissolvable Flat Bag 530L X 350W

• Dissolves at 50°C in the mixer — bag and additives release together, no removal required
• Pre-dose accuracy — fill, seal, and add to mixer for consistent batch dosing
• 530 x 350 mm dimensions hold single-batch additive quantities
• No worker chemical contact — additives stay sealed until dissolution in the mixer
• PVOH material is 3x stronger than LDPE at equivalent thickness
• Heat seal or fold closure secures the bag before mixer addition
• Zero residue — no microplastics, no plastic waste on site, marine safe
• Room temperature stable — dissolves only in hot water above 50°C
• 500 bags per carton for high-volume batching operations

For Site and Batching Plant Workers

• Pre-filled bags drop directly into the mixer — no measuring at point of use
• Workers never open chemical additive containers on site
• Eliminates weighing errors and over or under dosing per batch
• No empty plastic packaging to dispose of after each pour

For Operations and Procurement Managers

• Pre-dosed bags standardise additive quantities across all batches
• Reduces chemical handling incidents and PPE requirements at the mixer
• No plastic additive packaging waste on site or in waste disposal
• 500 bags per carton supports high-volume batching schedules
• Sydney warehouse stock ensures reliable supply for ongoing projects

Concrete Batching Plants

• Pre-dosed admixture bags for accelerators, retarders, and plasticisers
• High-volume batching where consistent dosing is critical to mix quality
• Superplasticiser and water reducer pre-dosing for ready-mix operations

Construction Sites

• On-site mixer additive dosing without chemical handling equipment
• Remote site applications where measuring equipment is unavailable
• Civil engineering projects requiring precise additive quantities per pour

Pre-Mix Concrete Manufacturers

• Standardised additive dosing across production runs
• Elimination of manual additive dispensing from the batching process
• Plastic-free additive packaging as part of sustainability programs

Yes. The bag dissolves completely at 50°C during the mixing cycle. No plastic film remains in the finished concrete mix. PVOH leaves no residue and produces no microplastics.

No. The bag requires sustained hot water above 50°C to dissolve. Rain or ambient moisture will not cause it to break down. Keep pre-filled bags in sealed storage away from standing water before use.

Yes. Pre-fill and seal bags in a dry environment and store away from moisture. Use within your normal stock rotation cycle. Contact Zeropac for guidance on maximum pre-fill storage time for your specific additive.

Use a standard impulse or continuous heat sealer set to a lower temperature than for polyethylene. Fold closure also works if heat sealing equipment is not available on site. Contact Zeropac for sealing guidance.

Stored correctly in a cool, dry environment, unfilled PVOH flat bags have a shelf life of 24 months. Keep away from moisture and direct sunlight.