Wall Putty

 Everything You Need to Know Before Applying

When we talk about house finishing, one of the most important steps before painting is Wall Putty.
It is that smooth white layer you see under wall paint which makes the wall look perfect and beautiful.
A good wall putty gives your walls long life, clean surface, and better paint quality.

In this blog, we’ll discuss in simple words what wall putty is, why it’s used, how to apply it, its benefits, disadvantages, and life durability.

1. What Is Wall Putty?

Wall Putty is a smooth paste or powder used before painting to make walls even, strong, and ready for paint.
It fills small cracks, holes, and uneven surfaces on plaster walls.

When you apply wall putty, it creates a smooth and strong base for the paint to stick properly.

Usually, wall putty is made from:

• White cement

• Polymers

• Minerals and fillers

There are two main types of wall putty used in Pakistan:

1. Cement-based putty (for interior and exterior both)

2. Acrylic-based putty (for interior walls only)

2. Why Wall Putty Is Used

Wall putty is not just for looks — it has a technical purpose too.
Here’s why it’s used before painting:

• To make wall surface smooth and uniform

• To fill cracks, dents, and holes

• To increase wall strength

• To help paint stick properly

• To make paint color look rich and fresh

• To protect wall from moisture and dampness

Without wall putty, paint will look rough and may start peeling after a few months.

3. Benefits of Using Wall Putty

Let’s look at the major advantages:

a. Smooth Finish

It gives a silky and even look to your wall surface before paint.

b. Long Paint Life

Paint sticks better on putty, so it lasts longer without fading or cracking.

c. Fills Cracks and Holes

Putty fills small wall defects which plaster alone cannot fix.

d. Moisture Resistance

Good quality putty protects walls from humidity and moisture damage.

e. Strong Base for Paint

It makes the paint layer stronger and prevents it from flaking or peeling.

f. Cost Saving

When wall putty is applied properly, it reduces the need for multiple paint coats — saving both paint and labor costs.

4. Disadvantages of Wall Putty

Even though it’s very useful, there are a few drawbacks too:

a. Time Consuming

Applying putty takes time because each coat needs to dry before the next one.

b. Skilled Labor Needed

If workers are not trained, they may leave marks or uneven patches.

c. Cost

Good quality putty is a little expensive, but it’s worth it for long-term protection.

d. Wrong Application Can Damage Paint

If putty is applied on wet or dusty walls, it may not stick well and the paint can bubble later.

5. How to Apply Wall Putty (Step-by-Step Guide)

Here’s a simple process that professional painters follow:

Step 1: Surface Preparation

• Clean the wall properly.

• Remove dust, oil, and loose plaster.

• Make sure wall is dry before applying putty.

Step 2: Mixing the Putty

• Mix the putty powder with clean water in a plastic bucket.

• Stir until it becomes a smooth paste (no lumps).

• Let it rest for 5–10 minutes before use.

Step 3: First Coat Application

• Apply the first coat with a putty blade or trowel.

• Spread it evenly across the wall.

• Let it dry completely (4–6 hours).

Step 4: Sanding

• Use sandpaper (400–600 grit) to smooth the surface.

• Remove dust with a dry cloth.

Step 5: Second Coat Application

• Apply a second thin coat for perfect finish.

• Again, allow it to dry fully before sanding.

Step 6: Primer and Paint

• After putty is fully dry and smooth, apply wall primer.

• Then start painting for final finishing.

6. How Many Coats of Putty Are Needed?

Usually, two coats are enough for a perfect finish.
If the wall is new and rough, sometimes 3 coats are applied.
Each coat must dry properly before adding the next one.

7. Life of Wall Putty

The life of wall putty depends on the type, brand, and how it’s applied.
Normally, good quality wall putty lasts 10–12 years easily if applied on dry and clean surface.

Cement-based putty is more durable for both interior and exterior walls, while acrylic putty is best for inside rooms.

8. Best Brands of Wall Putty in Pakistan

Here are some popular and trusted brands used in construction:

Always buy putty from authorized dealers to avoid fake material.

9. Where to Use Wall Putty

• On new plastered walls before painting

• On old walls to repair cracks before repainting

• On ceiling and interior partitions

• On exterior walls for protection from rain and heat

10. Tips for Better Putty Application

✅ Always apply putty on dry surface
✅ Use clean tools and water
✅ Don’t apply in direct sunlight or rain
✅ Allow each coat to dry properly
✅ Use primer before painting
✅ Prefer professional applicators for best results

11. How Wall Putty Improves Wall Strength

Wall putty doesn’t only make your walls smooth — it also gives extra bonding to the wall surface.
Because it’s made of white cement and polymers, it becomes part of the plaster.
That’s why your walls stay stronger and less likely to crack.

12. Common Mistakes to Avoid

❌ Applying putty on wet plaster
❌ Not cleaning dust before coating
❌ Skipping primer after putty
❌ Using low-quality material

These mistakes can reduce wall life and damage the final paint finish.

13. Cost of Wall Putty Application

The cost depends on:

• Brand of putty

• Number of coats

• Wall area size

Average rate in Lahore (2025):

• Material + labor: Rs. 20–35 per sq. ft (approx.)

Premium brands may cost slightly more but last much longer.

14. Wall Putty vs POP (Plaster of Paris)

Wall Putty is stronger and more durable than POP, especially for humid areas.

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