YUNYAN YY-919 Fast Setting Waterplug Cement

High-Strength Acrylic Fast Setting Waterplug Cement | Rapid Water Stopping Cement for Emergency Leak Repair

Product Overview

YUNYAN YY-919 is a premium acrylic fast setting waterplug cement engineered for instant waterproof plugging and structural leak sealing. This waterplug cement is a polymer-modified, single-component powder that sets within 1–2 minutes, forming a high-density, crack-resistant barrier against pressurized water. As a specialized rapid water stopping cement, YY-919 delivers exceptional bonding strength and long-term durability (up to 25 years) for both above-ground and underground concrete structures.

Whether you need a rapid set leak repair cement for bursting pipes or a quick setting waterproof cement for foundation walls, YY-919 provides a reliable, one-step solution. It is also ideal as a concrete leak repair cement for bridges, tunnels, and water tanks, outperforming conventional mortars in emergency scenarios. This emergency water stop compound works instantly to stop active leaks, while its high strength waterplug mortar formulation ensures permanent sealing under hydrostatic pressure. As a waterproof repair grout and rapid setting cement for leaks, YY-919 is the go-to choice for contractors and maintenance teams worldwide.

Key Features & Benefits

Ultra-Fast Setting (1–2 min) – As a true rapid water stopping cement, it hardens within 1–2 minutes at 25°C, stopping active water flow instantly.
High Bonding Strength (≥1.2 MPa) – Excellent adhesion to concrete, brick, stone, and old tile surfaces without shrinking or cracking.
High Pressure Impermeability – Primer ≥0.4 MPa / Mortar ≥1.5 MPa – blocks pressurized leaks effectively.
Long Service Life (25 Years) – Resists aging, freeze-thaw cycles, and chemical attack.
Temperature Extremes – Passed 100°C boiling (5h) and -40°C low-temp (5h) with no cracking or peeling.
Eco-Friendly & User Safe – Low VOC, non-toxic, easy to mix and apply.
High Compressive Strength (≥12 MPa @ 7d) – Suitable for structural repairs.

Scope of Application

YUNYAN YY-919 is a versatile concrete leak repair cement and emergency water stop compound suitable for:

Emergency leak sealing – Burst pipes, cracks in concrete walls, floors, and basements.
Underground structures – Subways, tunnels, parking garages, and foundation pits.
Water-related facilities – Reservoirs, drainage ditches, swimming pools, sewage tanks, and aquariums.
Brick & masonry structures – Old building restoration, crack filling, and through-wall hole plugging.
Industrial & civil construction – Quick repairs where downtime is not allowed.

Technical Data Sheet (TDS)

Property	Specification
Brand & Model	YUNYAN YY-919 (Acrylic Fast Setting Waterplug Cement)
Material Base	Polymer-modified cement, sulphate aluminium cement, silicone sand, additives
Form / Color	Single-component gray powder
Packaging	5 kg / bag (kraft paper bag with PE liner)
Material Consumption	Approx. 1.0–1.2 kg / mm / m²
Pot Life	1–2 minutes @ 25°C
Setting Time	4 hours (final set)
Application Method	By brush, trowel, or gloved hand
Compressive Strength (7d)	≥12 MPa
Bonding Strength (7d)	≥1.2 MPa
Impermeability Pressure – Primer (7d)	≥0.4 MPa
Impermeability Pressure – Mortar (7d)	≥1.5 MPa
High Temp Resistance	100°C boiled 5h: no cracking, peeling, flaking
Low Temp Resistance	-40°C for 5h: no changes on coating
Shelf Life	6 months in dry, sealed condition
Application Temperature	5–40°C

Step-by-Step Application Guide

Substrate Preparation
Clean the leak area – remove loose particles, oil, grease, and dust. For active leaks, chisel a V-shaped groove (approx. 20–30 mm deep) to allow the material to key in.
Mixing
Pour clean water into a clean container. Add YY-919 rapid setting cement for leaks at a powder:water ratio of 1 : 0.3 – 0.35 (adjust for workability). Mix vigorously for 30–60 seconds until a uniform, stiff paste forms.
Application (Emergency Plugging)
Wear rubber gloves. Take a handful of the mixture and firmly press it into the leak opening or groove. Hold pressure for 1–2 minutes until the material hardens and water stops flowing. For larger areas, apply in layers.
Finishing
After final set (4 hours), the surface can be smoothed or coated with additional waterproofing membranes if required. Keep the repaired area moist for 24 hours to maximize strength.

Global B2B Wholesale & Supply Chain Capabilities

Partner with YUNYAN – a trusted waterplug cement manufacturer with massive production capacity and fast global delivery:

High Daily Output: 100,000 kgs per day – ready for bulk orders.
Flexible MOQ: Minimum 1,000 bags (5 kg/bag) with custom bag printing options.
Fast Export Shipping: 15–20 days lead time after deposit confirmation.
Payment Terms: 50% deposit by T/T, balance before loading.
One-Stop Service: Export documentation, freight coordination, and on-site technical support.
Place of Origin: Guangdong, China (Mainland) – high-quality raw materials.

*YUNYAN YY-919 – The professional’s choice for rapid set leak repair cement, quick setting waterproof cement, and high strength waterplug mortar. Stop leaks instantly, seal permanently.*