Avoid These Common Wall Plastering Problems with Expert Tips
                     Wall Plastering Problems
How to Avoid Them
A practical guide for quality finishing
Why Plastering Matters
• Improves how buildings look
• Protects walls from damage
• Provides thermal insulation
• Adds sound and fire resistance
• Can cover building skeleton issues
Why Problems Occur
• Poor surface preparation
• Bad material selection
• Incorrect mixing of cement and sand
• Wrong weather conditions
• Improper application technique
Problem 1: Cracking
What causes it:
• Wrong cement-sand ratio
• Uneven plaster thickness
• Fast drying or poor curing
Impact: Visible cracks weaken walls
Problem 2: Peeling
What causes it:
• Poor surface preparation
• Exposure to moisture
• Dirty or oily base
Impact: Plaster detaches in patches
Problem 3: Bubbles
What causes it:
• Air trapped during application
• Overworking the surface
• Wrong application technique
Impact: Creates weak spots that crack
Problem 4: Sagging
What causes it:
• Plaster applied too thick
• Uneven application
• Too wet of a mix
Impact: Drooping or distorted walls
Problem 5: Shrinking
What causes it:
• Rapid drying conditions
• Incorrect cement-sand mix
• Too dry plaster mix
Impact: Fine cracks and separation
Problem 6: Uneven Walls
What causes it:
• Incorrect levelling
• Wrong 90-degree angle alignment
• Careless spreading technique
Impact: Affects tiling and furniture fit
Solution 1: Surface Preparation
• Clean surface - remove dust and debris
• Make it slightly rough for better bonding
• Ensure blocks are fully cured first
• Use cement slurry to improve grip
Solution 2: Choose Right Materials
• Use quality cement mix
• Keep correct cement-sand-water ratio
• Use clean, well-graded sand
• Use metal mesh at concrete-masonry joints
Solution 3: Accurate Levelling
• Apply level dots with a measuring tape
• Check alignment with straight edge
• Verify 90-degree corners
• Get this right before applying plaster
Solution 4: Apply Thin Layers
• Avoid thick coats - use multiple thin ones
• Each layer bonds better this way
• Reduces sagging and cracking risk
• Allow drying time between layers
Solution 5: Correct Technique
• Spread evenly with straight edge or trowel
• Don't overwork - avoid trapping air
• Use uniform strokes
• Avoid extreme temperature changes
Solution 6: Curing and Moisture
• Keep plaster moist for 7 days minimum
• Use light water sprays
• Avoid direct sun or wind exposure
• Control humidity during curing
Solution 7: Final Finishing
• Apply final coat with fine sand and cement
• Gently finish with soft sponge
• Don't press too hard with sponge
• Sand lightly for smooth, durable surface
Quick Checklist
• ✓ Clean and prepare surface well
• ✓ Use quality materials
• ✓ Apply thin, even layers
• ✓ Keep correct angles and levels
• ✓ Cure properly for 7 days
• ✓ Finish gently and smoothly
Quality Plastering
Pays Off in the Long Run
Attention to detail ensures beauty and durability