ONYX Engineering & Contracting Pvt Ltd.

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ONYX Engineering & Contracting Pvt Ltd.

We are a trusted provider of innovative, high-quality construction solutions, specializing in waterproofing systems and advanced construction chemicals.

We proudly serve clients who value durability, technical precision, and long-term performance.

10/08/2026

𝐒𝐮𝐩𝐞𝐫 𝐥𝐮𝐱𝐮𝐫𝐲 𝐥𝐢𝐠𝐡𝐭 𝐰𝐞𝐢𝐠𝐡𝐭 𝟑𝐃 𝐏𝐔 𝐜𝐮𝐥𝐭𝐮𝐫𝐚𝐥 𝐟𝐚𝐮𝐱 𝐬𝐭𝐨𝐧𝐞 𝐬𝐨𝐥𝐢𝐝 𝐰𝐚𝐥𝐥 𝐩𝐚𝐧𝐞𝐥𝐬 𝟔𝟎𝟎𝐦𝐦 𝐱 𝟏𝟐𝟎𝟎𝐦𝐦 𝐗 𝟑𝟎-50𝐦𝐦 mm

Premium-quality product.

PU Stone Panel are the best wall cladding/decorative products, they can be used in living rooms, bedrooms, kitchens, TV backgrounds, home renovations; corporate logo, meeting rooms, lobby walls, offices, restaurants , cafes, cinemas and night clubs and other places such as commercial buildings, residential buildings and hotel residency buildings etc.
Suitable for indoor & outdoor applications.

✔ Why choose PU stone panel?

Easy to install by structural adhesive or mechanical fixing.
No need keel/frame, can be hung, glued, cut and sawed easily.
Protection of ecological resources, reduce exploitation of stone, wood etc.
Eco-friendly, no harmful substance
No fading, anti-aging, anti-UV, anti-corrosion, anti-mildew, insect proof, windproof, waterproof and fire retardant.

Price - 8,900/- per panel

🛒Shop now - https://onyxengineerings.com/.../super-luxury.../
No12,Grandpass road,Colombo 14

Please contact for more details
☎Contact now - 071 340 9952

04/08/2026

STRONG BONDS THAT LAST – TRUST OUR ADHESIVE SEALANT!

Seal. Bond. Secure. One Product, Multiple Solutions.
Introducing our high-performance Construction Adhesive Sealant – engineered for professionals and DIYers alike.

✅ Unbreakable Bond Strength
✅ Waterproof & Weather-Resistant
✅ Flexible & Crack-Free Finish
✅ Multi-Surface Adhesion (Concrete, Wood, Metal,
Glass & More)
✅ Interior & Exterior Use

Whether you're sealing joints, bonding panels, or fixing fixtures – our adhesive sealant delivers industrial-grade hold with precision and reliability.

🛠 No sag. No shrink. No compromise.

Build with confidence. Seal with strength.
👉 Available now at all leading hardware stores

📍 No12, Grandpass road, Colombo 10 |

📲 Call/WhatsApp: 0713409952
📩 [email protected]/[email protected]

26/07/2026

ONYX Engineering & Contracting Pvt Ltd supplying premium quality of self adhesive acrylic mirror sheet size (4'x8')for best price.

Note: Nocut pieces available and we will not do cutting for customs size requirements , half size of sheet can be customize.

Call us 0713409952
Shop: No 12, grandpass road, colombo 14.
Web:www.onyxengineerings.com

product name:
Self adhesive Acrylic mirror sheet
Material:
100% Virgin PMMA
Color:
Gold, silver and black.
Standard Size:
Standard Sizes : 48" x 96" (4'x8')
Thickness:
1.25mm
Density:
1.2g/cm3

25/07/2026

STRONG BONDS THAT LAST – TRUST OUR ADHESIVE STRUCTURAL JOINT SEALANT!

Seal. Bond. Secure. One Product, Multiple Solutions.
Introducing our high-performance Construction Adhesive Sealant – engineered for professionals and DIYers alike.

✅ Unbreakable Bond Strength
✅ Waterproof & Weather-Resistant
✅ Flexible & Crack-Free Finish
✅ Multi-Surface Adhesion (Concrete, Wood, Metal,
Glass & More)
✅ Interior & Exterior Use

Whether you're sealing joints, bonding panels, or fixing fixtures – our adhesive sealant delivers industrial-grade hold with precision and reliability.

🛠 No sag. No shrink. No compromise.

Build with confidence. Seal with strength.
👉 Available now at all leading hardware stores

📍 No12, Grandpass road, Colombo 14

📲 Call/WhatsApp: 0713409952
📩 [email protected]/[email protected]

17/07/2026

Polyurethane (PU) liquid Waterproofing membrane is an elastic waterproofing membrane, single component of water-based polyurethane.
Used to prevent leakage, solve cracks on concrete caused by rapid change of temperature.
PU Waterproof has a character of;
- one component pure polyurethane.
- 100% proof seamless waterproof layer.
- Highly elastic, elongation up to 600%.
- UV resistance, harsh weather tolerance.
- Can be used for internal & external.
- Abrasive resistance from high traffic.

PU Waterproof is designed for waterproofing to
- Concrete roof deck
- Flat roof & Terraces, balconies, bathrooms & Toilets
- Kitchen
- swimming pool and basement
- Residential wall
- Building foundation
- Planter boxes & Gardens.
- Water tanks.

Coverage - 450-500 Sqft (2 coats)
Colors : Black, Dark grey, Light grey

📦 Available in: 2K,5Kg,20 Kg pack
📍 For more info or to place an order
Contact 0713409952 us today!
📍 No12, Grandpass road, Colombo 14
🕒 Open: 9.00 am-5.00 pm (Monday-Saturday).

07/07/2026

Onyx engineering and Contracting (Pvt) Ltd Company Supply/ Supply with application of wide range of high-quality performance waterproofing materials and construction chemical products for best price utmost satisfaction of customers to the best of our ability as mutual

Application area:
Open Metal roof
Open terrace Concrete slab
External & patapet walls
Wet areas ( bathrooms & balconies)
Roof repair & maintenance
Heat insulation & waterproofing membrane AC102

Heat insulation & waterproofing membrane AC102 is generally a liquid-applied coating used for both waterproofing and reducing roof heat absorption. AC102-type products are acrylic and form a seamless elastic membrane after curing.

Common features:
Waterproof protection against rain leakage
Heat reflection / temperature reduction
UV resistance
Crack-bridging flexibility
General application procedure:
Clean the surface completely
Repair cracks and loose areas
Apply primer if recommended
Apply first coat by roller/brush
Place fiberglass mesh on joints/cracks if needed
Apply second coat cross direction after drying
Allow proper curing

Coverage usually:
Around 400-450 sq.ft per 20 kg for 2 coats (depends on product thickness)

Important:
Heat insulation coatings reduce heat transfer but will not cool like an AC.
White or light-colored membranes reflect heat better than dark colors.
Proper surface preparation is critical for bonding and long life.

Price: 38,000/= 20KG Pack

☎Call or WhatsApp – 071 340 9952.
📍 Onyx Engineering & Contracting (Pvt) Ltd.
📍 No12, Grandpass road, Colombo 14.
🕒 Open: 9.00 am-5.00 pm (Monday-Saturday).

05/07/2026

1. Product Description
HAMHWA® Epoxy Colored Sand Floor Paint is a high-performance, UV-stable epoxy flooring system incorporating specially graded colored sand to provide a decorative, durable, and non-dusting floor finish.
It is suitable for indoor and outdoor applications, offering excellent abrasion resistance, strong adhesion, and long-lasting color stability under sunlight.

2. Product Information
Product Name: HAMHWA® Epoxy Colored Sand Floor Paint
Type: Epoxy resin–based decorative flooring system
Finish: Textured / Anti-slip
UV Resistance: UV Stable
Color: As per colored sand selection

Pack Size: 1.6 kg per set

3. Key Features & Benefits
✅ UV Stable – color does not fade
✅ Excellent abrasion & impact resistance
✅ Strong adhesion to concrete
✅ Decorative textured finish
✅ Dust-proof & easy to maintain
✅ Good water & chemical resistance
✅ Suitable for indoor & outdoor use
✅ Anti-slip surface for safety

4. Typical Applications
Garages & parking areas
Workshops & service centers
Balconies & walkways
Showrooms & retail floors
Small industrial & residential floors
Ramps and pathways

📦 Available in: 1.6 Kg pack
📍 For more info or to place an order, contact 0713409952 us today!
📍 ONYX Engineering & Contracting Pvt Ltd. ,No12, Grandpass road, Colombo 14
🕒 Open: 9.00 am-5.00 pm (Monday-Saturday).

01/07/2026

Polyurethane (PU) liquid Waterproofing membrane H-PU102 is an elastic waterproofing membrane, single component of water-based polyurethane.
Used to prevent leakage, solve cracks on concrete caused by rapid change of temperature.
PU Waterproof has a character of;
- one component pure polyurethane.
- 100% proof seamless waterproof layer.
- Highly elastic, elongation up to 600%.
- UV resistance, harsh weather tolerance.
- Can be used for internal & external.
- Abrasive resistance from high traffic.
PU Waterproof is designed for waterproofing to
- Concrete roof deck
- Flat roof & Terraces, balconies, bathrooms & Toilets
- Kitchen
- swimming pool and basement
- Residential wall
- Building foundation
- Planter boxes & Gardens.
- Water tanks.
Coverage - 350Sqft (2 coats)
Colors : Black
📦 Available in: 2KG,5Kg,20 Kg pack
📍 For more info or to place an order, contact 0713409952 us today!
📍 No12, Grandpass road, Colombo 14
🕒 Open: 9.00 am-5.00 pm (Monday-Saturday)

23/06/2026

PU Liquid Membrane Waterproofing offers a 100% seamless waterproofing layer.

With UV Resistance and Harsh Weather Tolerance, this PU Waterproofing layer is ideal for concrete roof decks, basements, water tanks and swimming pools.

Pack sizes available in 2KG, 5KG and 20KG

Address

No12, Grandpass Road, Colombo 14
Colombo

Telephone

+94713409952

Website

https://onyxengineerings.com/

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