
24 Sep Key Differences Between Interior and Exterior ACP Sheets
Table of Contents
You can see clear differences between interior ACP sheets and exterior ACP panels. Interior ACP sheets have thinner paint and aluminum layers. This makes them lighter and not as strong as exterior types. Exterior ACP sheets use thicker coatings and aluminum. This gives them more strength and helps them stand up to weather. These differences are important. You need to pick the right sheet for your project’s location. More than 65% of aluminum composite panels are used in building walls, facades, and inside spaces. Outdoor ads make people want exterior ACP sheets even more.
Key Takeaways
Interior ACP sheets are lighter and made for inside use. They have thinner coatings and aluminum layers, so they are not strong against weather.
Exterior ACP sheets are made to handle tough weather. They have thicker coatings and stronger aluminum, so they last longer and protect from sun and rain.
Pick the right ACP sheet for your project place. Use interior sheets for looks inside and exterior sheets for strength and weather safety outside.
Thicker paint on exterior ACP sheets gives better protection and keeps color longer. Always check the thickness before you buy to make sure it will last.
For best results, ask experts to install them. Good installation helps both interior and exterior ACP panels work well and last longer.
Interior ACP Sheet Overview
Internal ACP Panels Explained
Internal acp panels are used in homes and offices. These panels have a thin layer of paint. The paint is less than 15 microns thick. The aluminum layer is also thin in these sheets. Most standards show aluminum thickness from 0.5mm to 0.7mm. You can see the usual thickness in the table below:
Specification | Value |
|---|---|
Aluminum Thickness | 0.5mm to 0.7mm |
Internal acp panels feel light when you pick them up. They are not as strong as exterior panels. You should use interior acp sheets only inside buildings. These panels do not work well in rain or sunlight. Internal acp panels are easy to install and look modern indoors. Here are some facts about internal acp panels:
Internal acp panels are light and made for indoor spaces.
You cannot use them outside because they do not resist weather.
Exterior panels are stronger and last longer outdoors.
Interior acp sheets are easy to cut and shape. You can pick from many colors and finishes. This helps you match your style. The surface is smooth and looks neat.
Common Interior ACP Applications
Internal acp panels are used in many places in homes and businesses. Interior acp sheets work for walls, partitions, and ceilings. You also see them in furniture and decorations. The table below shows common uses for interior acp:
Application | Description |
|---|---|
Interior Partitions | Used to make nice dividers in offices, can change height and style. |
Furniture Design | Good for modern furniture like wardrobes and cabinets, easy to clean and lasts long. |
Signage | Great for signs inside and outside, strong and good for printing graphics. |
Decorative Features | Used for accent walls and art pieces, comes in many colors and finishes. |
Kitchen Backsplashes | Resists moisture, makes kitchens look better and is easy to clean. |
Retail Interiors | Makes displays and fitting rooms look nice, can match store branding. |
Acoustic Panels | Some types absorb sound, help make offices and theaters quieter. |
Green Building Solutions | Eco-friendly choices help support green design in interiors. |
You can use interior acp sheets for many creative ideas. Internal acp panels give you style and flexibility. They are good for places where you want a light and easy-to-clean surface. Interior acp is a smart choice when you want to save money for indoor spaces. You will find many uses for internal acp panels in new buildings.
Exterior ACP Overview

External ACP Panels Explained
External acp panels have thicker paint and stronger aluminum. The paint is PVDF-based fluorocarbon. This paint stops fading and damage from sunlight. The aluminum layer is usually over 0.25 mm thick. These panels feel sturdy and work well outside.
External acp panels are made to last outdoors. They can handle UV rays, rain, and dust. The panels keep their color and shape for years. Most companies give a warranty for 10 to 20 years. You do not need to worry about peeling or bulging. The panels look new even after lots of sun.
Tip: Pick external acp panels with PVDF coating. Your building will look fresh and modern for many years. These panels can stay bright for 15-20 years.
External acp panels are great for outside walls. You can use them on building exteriors. The panels protect against weather and dust. You get a strong and nice-looking finish that lasts.
Common Exterior ACP Applications
External acp panels are used in many places. They are popular in new buildings and big projects. Here are some ways people use external acp panels:
Commercial buildings use external acp panels for facades, cladding, signs, and canopies. Tall buildings like how light and tough they are.
Homes use external acp panels for outside walls, balconies, and sometimes inside walls. You can make cool designs and improve your home’s look.
Big projects use external acp panels in airports, metro stations, bridges, and stadiums. The panels are strong and easy to install.
Application Area | How External ACP Panels Are Used |
|---|---|
Building Facades | Give buildings strong and stylish outside walls |
Signage | Make tough outdoor signs |
Canopies | Protect entrances and add style |
Balconies | Make balconies safe and modern |
Transport Hubs | Used in airports and metro stations |
External acp panels work for many needs. They are a good choice for outdoor walls and other uses. The panels help buildings look good and stay safe from bad weather.
Interior vs. Exterior ACP: Comparison
Material and Coating
When you check the material and coating, you see big differences. Interior acp sheets have polyester or acrylic coatings. These coatings are thin and good for inside use. Exterior acp sheets have a fluorocarbon coating called PVDF. This coating is much thicker. It keeps the panel safe from sun and rain. The table below shows the main differences:
Feature | Interior ACP Sheets | Exterior ACP Sheets |
|---|---|---|
Coating Material | Polyester or acrylic | |
Coating Thickness | Less than 15 microns | Greater than 25 microns |
Aluminum Thickness | Less than 0.25 mm | More than 0.25 mm |
Panel Thickness | About 3 mm | At least 4 mm |
Note: Exterior acp sheets have a thicker coating. This helps them last longer outside. Always pick the right coating for your project.
Thickness and Strength
How thick and strong a panel is matters for safety. Interior acp sheets are usually 3 mm thick. This is good for walls, ceilings, and furniture. Exterior acp sheets are at least 4 mm thick. Some panels for busy places can be 5 mm or 6 mm thick. Thicker panels are stronger and protect better.
Application Area | Recommended Thickness | Characteristics |
|---|---|---|
Interior Applications | 3 mm | Good for indoor use, light and easy to install |
Exterior Cladding | 4 mm | Stronger, resists wind and weather |
High-Traffic/Industrial Areas | Extra impact resistance, best for busy or outdoor environments |

The chart shows that exterior acp panels are always thicker. This extra thickness gives more safety and lasts longer.
Durability and Weather Resistance
Durability and weather resistance are important when picking a panel. Interior acp sheets use PE coatings. These last about 5 to 8 years indoors. They do not protect from rain or sun. Exterior acp sheets use PVDF coatings. These can last up to 20 years outside. They keep your building safe from UV rays, rain, and dust.
Coating Type | Weather Resistance | Application |
|---|---|---|
PE Coating | 5-8 years | Interior use |
PVDF Coating | Up to 20 years | Exterior use |
Tip: To keep your building looking nice for years, use exterior acp panels outside.
Applications
Each type of aluminum composite panel fits different uses. Interior acp sheets are best for walls, ceilings, and furniture. They are easy to cut and shape. You can use them for cool designs inside homes and offices. Exterior acp sheets are made for outside jobs. They protect building facades, balconies, and signs from bad weather.
Application Environment | Key Features | Characteristics |
|---|---|---|
Exterior | Great for building facades, resists rain, sun, and wind | |
| Low Maintenance | Easy to clean, does not collect much dirt |
Interior | Sophisticated Aesthetics | Makes rooms look modern and stylish |
| Versatile Uses | Works for walls, ceilings, furniture, and more |
| Customization | Easy to cut and install, many sizes and finishes available |
You should always use the right acp sheet for your project. Use interior acp sheets for inside where you want style and easy cleaning. Use exterior acp sheets for outside where you need strength and weather protection. The right panel will help your project last longer and look better.
Key Differences Explained
Paint Film Thickness
It is important to look at paint film thickness when picking acp sheets. Thicker paint films protect the panels better. Exterior acp panels have paint films over 25 microns thick. This thick layer keeps out sunlight, rain, and dust. Interior acp sheets have paint films less than 15 microns thick. These are good for inside walls and cladding but do not work well outside.
Thicker paint films make the panels last longer. The color stays bright and does not fade fast. Thin paint films cost less for indoor jobs but do not protect as much. If you want to save money inside, thin paint films are fine. For outdoor use, thick paint films help you avoid repairs and save money later.
Tip: Always check paint film thickness before buying acp sheets. Thicker coatings protect better and last longer outside.
Aluminum Thickness
Aluminum thickness is important for how strong and tough the panels are. Exterior acp sheets use aluminum layers over 0.25 mm thick. This makes the panels strong against wind, hits, and weather changes. Interior acp sheets use thinner aluminum, usually less than 0.25 mm. These panels are lighter and good for inside use.
Thicker aluminum means the panels are stronger and last longer. Thinner aluminum makes the panels lighter and easier to put up inside. You save money on indoor projects because you do not need extra strength. For outdoor jobs, thicker aluminum keeps the panels safe from bad weather.
Certification Standard | Minimum Thickness | Application Area |
|---|---|---|
Inner Panel | 3 mm | Interior |
Outer Wall Panel | 4 mm or more | Exterior |
Aluminum Layer | 0.5 mm | Both |
Robustness
Robustness means how well acp panels handle damage and stress. Exterior acp sheets are strong and can handle bad weather. You can use them on building fronts, signs, and balconies. These panels do not bend, crack, or break easily. Interior acp sheets are not as strong. They are best for walls, ceilings, and furniture where you do not need much strength.
Stronger panels last longer and need fewer repairs. Exterior panels are tough and need less care. Interior panels are easy to use and put in place. You should pick the right strength for your project. Strong panels protect your building and save money on repairs.
Note: Strong acp panels help stop damage from wind, rain, and daily use. Pick the right strength for your space.
Weather Protection
Weather protection is why you pick exterior acp sheets for outside. These panels have special coatings and thicker aluminum to block UV rays, rain, and dust. The panels stay bright and strong for many years. Interior acp sheets do not protect as well from weather. They are best for dry and safe places inside.
Here is a table that shows how weather protection helps acp sheets work outside:
Feature | Description |
|---|---|
Panels handle bad weather and last a long time. | |
Water Repellent | The surface keeps out water and stops damage. |
Termite Resistant | Panels do not get damaged by termites in any weather. |
Fire Resistant | Special film helps keep the panel safe during fires. |
Easy to Clean | The surface stays clean and looks new. |
Eco-Friendly | Made from materials you can recycle, good for the planet. |
Exterior acp sheets last longer and protect better from weather. These features help you spend less on repairs and keep your building safe. Aluminium composite panels also help keep buildings cool, lower energy bills, and are good for the environment. You can recycle acp sheets, which helps the earth and supports reuse.
Tip: Exterior acp sheets with fire certifications like NFPA285, EN-13501, and ASTM E119 give extra safety for your building.
Choosing Interior or Exterior ACP
Selecting Interior ACP
Pick an interior ACP panel if your project is inside. These panels are best for places that do not get bad weather. You can use them for walls, ceilings, and furniture. High-gloss panels make rooms look modern. You can also use them for cool ceilings or stylish office walls.
When picking an interior panel, check these things:
The surface should be smooth and not scratched.
The thickness should be about 3 mm for most uses.
Pick a finish that matches your style, like high-gloss or wood.
Make sure the core is PE, which is safe for inside.
Ask for panels that meet fire safety rules for extra safety.
Tip: Always let a pro install your panel. This gives the best results and keeps you safe.
Here are some ways to use interior ACP panels:
Wall cladding for a neat, modern look
Furniture with strong, easy-to-clean surfaces
Cool ceiling designs
Partition walls for privacy and style
Selecting Exterior ACP
You need exterior ACP panels for outside projects. These panels protect buildings from sun, rain, and wind. They last longer because they have thicker aluminum and special coatings. You can use them for building fronts, outdoor signs, balconies, and transport hubs.
Check these things before picking an exterior panel:
Criteria | Description |
|---|---|
Material Quality | The panel should be smooth and not damaged. |
Thickness | Use panels at least 4 mm thick for strength. |
Coating Options | PVDF coatings help block UV rays and weather. |
Fire Resistance | Pick panels that meet fire safety codes. |
Performance and Durability | The panel must handle weather and last for years. |
Installation | Always use skilled workers for safety and good work. |
Here are some real examples of exterior panels:
Project Name | Location | Key Features |
|---|---|---|
India | Bright colors, smooth surface, easy to clean | |
VIVA’s Fire-Resistant ACP | India | Meets fire codes, many colors and finishes |
ALUCOBOND® Panels | Global | Used for bold, curved building shapes |
Note: Match the panel type to your project’s needs. For example, use metallic finish panels for offices or high-gloss panels for a fancy look.
You can pick the right panel by checking the place, safety, and design you want. The right panel will help your project last longer and look great.
You can tell interior and exterior ACP sheets apart easily. Interior sheets have thin aluminum and light coatings. This means you must clean and fix them more often. Exterior sheets have thick layers and strong coatings. They last longer and need less care.
Feature | Interior ACP Sheets | Exterior ACP Sheets |
|---|---|---|
Thickness | 3mm | 4mm or more |
Coating | Polyester or acrylic | PVDF fluorocarbon |
Durability | Needs more maintenance |
Tip: Use interior ACP sheets inside when you want a nice look. Use exterior ACP sheets outside for strong walls and weather safety.
FAQ
What is the main difference between interior and exterior ACP sheets?
Interior ACP sheets have thin aluminum and paint layers. Exterior ACP sheets use thicker materials and special coatings. This makes exterior panels much stronger. They are better for outside because they last longer.
Can you use interior ACP sheets outside?
You should not use interior ACP sheets outside. These panels cannot handle rain, sunlight, or wind. They work best inside buildings where weather does not hurt them.
How long do exterior ACP sheets last?
Exterior ACP sheets can last up to 20 years. PVDF coatings help stop fading, rain, and dust. Cleaning them often keeps them looking new.
Are ACP sheets safe for kitchens?
You can use interior ACP sheets for kitchen backsplashes. These panels resist water and are easy to clean. Always check for fire safety before putting them near heat.
How do you choose the right ACP sheet for your project?
First, check if your project is inside or outside. Use interior ACP sheets for indoor walls and furniture. Pick exterior ACP sheets for outdoor walls and signs. Always look at thickness, coating, and safety features.

Selecting Interior ACP