One, what are the differences between putty powder and ready-mixed putty paste?
1、Construction differences
Putty powder must be mixed and used on-site, which extends the construction time and increases labor costs.
Ready-mixed putty paste can be used immediately, saving construction time and improving construction efficiency, thereby reducing labor costs.
2、Differences in the construction site environment conditions
Mixing putty powder can create dust at the construction site, leading to mess and inconvenience.
Ready-mixed putty paste does not produce dust, making it environmentally friendly.
3. Different levels of quality stability
When using putty powder, variations in workmanship on-site can lead to peeling and detachment issues later on.
When using ready-mixed putty paste, workers on-site require minimal intervention, which reduces the likelihood of various issues occurring later.
4、Different substrate requirements
Ensure that there is no dust or debris present. Apply the interface treatment agent to perform the strengthening.
Minor dirt and stains can be effectively addressed, and the substrate requirements are not overly stringent.
5、Differences in construction on old walls
Powdery putty exhibits high shrinkage, leading to potential quality issues.
ready-mixed putty paste construction stability is strong, contains a high amount of glue.
6、Different manufacturing requirements
Apply interface treatment agent to the wall surface once, then apply ready-mixed putty paste to fill in cracks and irregularities. Finally, apply a base coat of putty powder.
Apply a coat of plaster to repair irregularities on the wall surface, and apply a layer of putty paste to the substrate.
7、Different usage amounts
Generally, 20 kg of putty powder can cover 15 square meters of wall with two coats.
However, 20 kg of ready-mixed putty paste can cover 12 square meters of wall with two coats.
8、Conserve the use of latex paint.
Putty powder's water absorption rate affects the amount of latex paint required.
The putty paste layer in the ready-mixed putty paste contains sufficient amount of adhesive and has high density, which can save 20-30% of the use of acrylic paint.
9、Winter Construction
"Putty powder application during winter is significantly affected. There is a lack of standardization in worker operations and insufficient mixing, leading to issues."
Ready-mixed putty paste is produced using automated factory processes to ensure consistent quality.
Two. Should you use putty powder or ready-mixed putty paste for wall repair?
Ready-mixed putty paste, also known as finished putty powder, is easy to use, requiring only the addition of water for application. However, it is more expensive, and its strength is relatively low if used directly without additional components. Therefore, responsible painters will typically add a small amount of PVA (polyvinyl acetate) to the putty paste to enhance its adhesion.
Common putty powder requires the addition of mature adhesive powder, 801 adhesive, cellulose, and a small amount of PVA (polyvinyl alcohol) as bonding agents. However, using ready-mixed putty paste is generally more cost-effective. There is no significant difference in environmental impact.
In summary, both putty powder and ready-mixed putty paste are used for leveling walls in construction and decoration. Both types of putty powder and ready-mixed putty paste serve the same purpose, with ready-mixed putty paste being more convenient to use.