CORAL W888 - MASTER PROOFERmphk123.weebly.com/uploads/3/1/3/7/31378773/w888-476.02.pdfApply with a semi-stiff brush, a coconut fiber broom or trowel. Let dry for 8-24 hours, then the

www.labondhk.com Member Of Master Proofer Corporation LTD www.labondhk.com

LABOND Range of products are designed, manufactured and supplied by MASTER PROOFER COMPANY LTD

Head Office: 139A Hung UK Tsuen, Ping Shan, Yuen Long, N.T., Hong Kong

Tel :(852)2609 2300 Fax:(852) 2609 2309 E-mail:[email protected]

Every endeavor has been made to ensure that the information given herein is true and reliable, but it is given only for the guidance of our customers. The Company cannot accept any responsibility for loss or damage or

infringement of patent right that may result from the use of the information, due to the possibility of variations of processing or working conditions and of workmanship outside our control.. Users are advised to

Confirm the suitability of the products with their own tests. Any dimensions shown are approximate. Form-S1.1 960401

Form-MKT/LABF/341.01

Control Reference: TCH/W888/455.06 Version:06 page 1 / 4

CORAL W888

Cementitious Waterproofing Coating (Crystallization)

水泥基微晶防水塗層

1.0 Description CORAL W888 is a kind of “ready-for-use” cementitious coating specializing for waterproofing foundations wall,

vertical / horizontal; interior and exterior surfaces. It composes of very pure silicones washed sand and appropriate

admixtures by which a real impervious barrier is formed to resist impact and aging. A crystallization layer is formed on

the contact surface between CORAL W888 and Concrete which tightly bond up both sides of surface, it then allow

W888 coating a superior property in resisting back-pressure caused by water ingression.

2.0 Technical Data Remark / Standard

Suitability for use (Human Consumption) Suitable Complied BS6920 pt1 clause 8

Density of the Powder 1.3 -

State of Mortar Creamy Thixotropy -

Color White -

Application Temperature 5℃ to 40℃ - Mixing Ratio on CORAL W888: Water 25kg (W888): 6.5 Liter (water) HKHA/MTS (2002/2004 Spec Part D)

Tooling Time @ 23℃ 60% RH 30 - 45 mins (Standing System) 15 mins (Emergency System)

-

Initial setting @ 23℃ 60% RH 60 mins (Standing System) 20 mins (Emergency System)

-

Foot Traffic @ 23℃ 60% RH 120 mins (Standing System) 40 mins (Emergency System)

Vary in according to addition of LABOND Curing Enhancer C118 and site conditions

Receiving onward cement work @ 23℃ 60% RH

120 mins (Standing System) 40 mins (Emergency System)

Ditto

Compressive strength - 7 days - 28 days

25 Mpa 35 Mpa

HKHA/MTS 02/04 Specification Part D clause 2.1.1

Bonding Strength to Concrete @ 28 days

>2 Mpa HKHA/MTS(2002/2004) Specification Part D clause 2.1.15 Method 1

Shrinkage Crack Resistance No crack Coutiho Ring Test HKHA/MTS (2006/2008) Specification Part D clause 2.1.6

Average Water Absorption Rate 3.5% ASTM D570-81 (By 24 HRS immersion)

Resistance to Hydro Static pressure - Front Pressure - Back Pressure

>8 BAR (80 meter waterhead) >1 BAR (10 meter backside penetration)

Hong Kong MateriaLab Accredited by Hoklas Laborartory

3.0 Product Advantages Coral W888 is cement based material; it is compatible to cement substrates. It has not only good bonding strength with

concrete, brick, stone, marble, tile surfaces but also behave self as good surface in receiving onward plaster, paints and

tile etc.

4.0 Crystallization Process of Coral W888 The chemicals contained in Coral W888 require the presence of moisture for the chemical reaction to take place and in

combination with “free lime”, the chemicals in Coral W888 form long chained complex which crystallize in the

capillaries. The crystalline growth or salt crystals are capable of penetrating deep into the capillaries of the concrete and

are capable of bonding physically or chemically with large amount of moisture. Coral W888 crystalline will lie dormant if

no moisture is present. If at a later date moisture reappears, the crystals reactivate to seal the cause of leakage.

Coral W888的防水機制

Waterproofing Mechanism

結晶化後形成的強力結合層將兩面扣緊

CORAL W888


www.labondhk.com Member Of Master Proofer Corporation LTD www.labondhk.com Control Reference: TCH/W888/455.06 Version:06 page 2 / 4

5.0 Typical Application House basement, Basement walls, External Wall, Building foundation, Flooring, Parking lots, Water tank, Reservoir etc.

6.0 Application Apply with a semi-stiff brush, a coconut fiber broom or trowel. Let dry for 8-24 hours, then the surface is remoisten before applying the second layer. Normally, if it is applied by semi-stiff brush, 2 coats of Coral W888 should achieve or exceed a minimum thickness of 2.5mm. Temperature range for application should be within 5

oC and 35

oC. Do not

expose the material under strong sunlight during application.

7.0 Application Details Preparation: All surfaces should be sound, clean, dry, and free of dust, oil, grease or other contamination. Loose matter should be removed by abrasion, compressed air or high-pressure water. Honeycomb concrete, bristles, cracks, hollow joints and source of running water must be pretreated before application of Coral W888. (Please consult our technical department for recommendation on cracks treatment). Coral W888 is a ready-mixed mortar in drum for Method I and for Method II is in “set form” which composes of W888 Powder, A907 Net Mesh and a bottle of Labond C118 Curing Enhancer. On request basic, Coral W888 Powder can be supplied in paper bag). Method I – Standing System Method This method is applied while site condition allow at least 24 hours curing time for waterproofing work before application of onward cement work, plastering or paint coating, etc. Add 6.5 liters of fresh water and powder onto 25kg bucket . Apply low speed electric stirrer (180Rpm) to mix until smooth homogenous paste is obtained. Never try to add additional water into the mortar after completion of mixing procedure. Manual mixing is acceptable for professional worker without low speed electric stirrer. Apply the first coat in about 1.5mm thickness. Apply the second coat after 3 hours to achieve a total of at least 2.5mm thickness. Additional 24 hours curing time before onward finishing work to be proceeded. For Heavy Duty requirement, such as Car Park, Factories, etc. Fibre Net Mesh A907 is required to lay between two coatings forming as Sandwich System. Method II – Emergency System Method This method is applied for emergency repairing incident where onward cementitious work finish to be done right after application of Coral W888 coating within 45 minutes. This method is specially designed for both semi-dry laying and c/s screed tiling work (Refer Labond Technical Advisory Procedures for these works). Emergency set of CORAL W888 is pre-bagged with Part A (Powder), Part B (Liquid) in one bucket and Part C Net Mesh. Mix Powder and Liquid component to form homogeneous toolable mortar. Apply low speed electric stirrer (180Rpm) to mix until smooth homogenous paste is obtained. Never try to add additional water into the mortar after completion of mixing procedure. Manual mixing is acceptable for professional worker without low speed electric stirrer. Apply first coat in about 1.5mm thickness, then slightly press Labond Net Mesh A907 onto the first coat, then apply second coat to achieve at least a total of 2.5mm thickness.

Application Diagram

Method I

Method

I

Method I

Method I

Method I

CORAL W888



8.0 Strength Development for Foot Traffic for Onward Cement Work

9.0 Reinforcement Net Mesh Control for thickness on uneven Surface Applying Labond A907 Net Mesh as sandwich system for Coral W888 will achieve 3 important quality control measures:

-

(i) Thickness control achieved by bedding effect of Net Mesh (See below Diagram)

(ii) Strength reinforcement of Coral W888

(iii) CRACK resistance capability

* The figure of above table are the result of practical findings recorded by LABOND’s R&D Department at site where is under good

ventilation condition. Actual site conditions may cause different result.

Initial Strength Formation Time for Foot Traffic Laying by

CORAL W888 Mortar Reinforced with MP Net MESH A907

VS Relative Humidity under 25 C

A1A3A2

0

10

20

30

40

50

60

70

80

90

100

0 30 60 90 120 150 180 210 240

Time (Min)

Rela

tiv

e H

um

idit

y(%

) A1: LABOND CORAL W888 (Standing System) at 25℃

A2: LABOND CORAL W888 (Emergency System)

at 25℃

A3: LABOND CORAL W888 (Emergency System, with

higher concentration of Enhancer) at 25℃

B1: LABOND CORAL W888 (Standing System) at

RH 65%

B2: LABOND CORAL W888 (Emergency System) at

RH 65%

B3: LABOND CORAL W888 (Emergency System,

with higher concentration of Enhancer)at RH

65%

Labond Fibre Glass

Net Mesh A907

CORAL W888



10.0 Material Coverage Coral W888(Standing System) is packed by 25kg/Bucket, 3kgs is estimated to cover 1 m

2 of “2 coat” application.

Coral W888(Emergency System) is packed by 10kg/ Bucket, 4kgs is estimated to cover 1 m2 of sandwich coats

application.

* Actual Coverage may be vary subject to rough of substrate.

Toxicity Test for Contact with Drink Water per National Standard of China GB/T17219-1998.

Test Report No. W312-0166-2003

Result: Passed, Suitable for direct contact with drink water for Human.

Content

Unit Standard of requirement Tested Value

CORAL W888 Result

Arsenic mg/L ≤0.005 <0.005 Passed Mercury [Hg] mg/L ≤0.001 <0.001 Passed Chromium [Cr] mg/L ≤0.005 <0.005 Passed

Cadmium [Cd] mg/L ≤0.001 <0.001 Passed Lead [Pb] mg/L ≤0.005 <0.005 Passed Silver [Ag] mg/L ≤0.005 <0.005 Passed Nitrate (Nitrogen[N]) mg/L ≤2 <2 Passed Chloroform μg/L ≤6 <6 Passed Carbon Tetrachloride μg/L ≤0.3 0.3 Passed

Benzo[a]pyrene μg/L ≤0.001 zero Passed Fluoride [F] mg/L ≤0.1 <0.1 Passed Zinc [Zn] mg/L ≤0.1 <0.1 Passed Iron [Fe] mg/L ≤0.02 <0.02 Passed Copper [Cu] mg/L ≤0.1 <0.1 Passed Manganese [Mn] mg/L ≤0.01 <0.01 Passed

11.0 Packaging Standing System – 25kg W888/Bucket

W888 Emergency System – 10kg W888 + 2Liter MP Enhancer + 3M2 Net Mesh

12.0 Health and Safety CORAL W888 is non-toxic and suitable for application in water tank. Please handle the material according to General

Safety procedure of cement base material.

13.0 Technical Services The Technical office of Master Proofer Company Ltd are readily available for advice on any of LABOND’s products.

END

Appointed Regional Distributor

In some territory, Master Proofer’s products are marketed and sold through her appointed

distributors who will observe Master Proofer’s standard rule and regulation in quality

control procedure including transport, storage and after sales service support. Our

appointed distributor will be issued a certificate of appointment bearing their distributor

number and their scope of service. Should there is doubt about the distributorship, please

verify with our Hong Kong Office or China Representative Office. We highly recommend

our client to deal with our registered distributors or through their agents’ channel so as to

receive quality service and to avoid imitative products.

www.labondhk.com Member Of Master Proofer Corporation LTD www.labondhk.com

LABOND Range of products are designed, manufactured and supplied by MASTER PROOFER COMPANY LTD

Head Office: 139A Hung UK Tsuen, Ping Shan, Yuen Long, N.T., Hong Kong

Tel :(852)2609 2300 Fax:(852) 2609 2309 E-mail:[email protected]

Every endeavor has been made to ensure that the information given herein is true and reliable, but it is given only for the guidance of our customers. The Company cannot accept any responsibility for loss or damage or

infringement of patent right that may result from the use of the information, due to the possibility of variations of processing or working conditions and of workmanship outside our control.. Users are advised to

Confirm the suitability of the products with their own tests. Any dimensions shown are approximate. Form-S1.1 960401

Form-MKT/LABF/341.01

Control Reference: TCH/W888/476.02 Version:02 page 1 / 4

CORAL W888



1.0 簡介

Coral W888 水泥基微晶防水塗層是一種英泥性塗料。它是針對室內外牆身防水需要設計。CORAL

W888 包含純石英矽砂粒體及特殊添加劑，當混和及凝固後便形成良好防水屏障對抗水壓入侵。當

W888 與石屎接合時會產生結晶化並將兩面緊扣, 大大加強其抵抗背水壓的特性.

2.0 技術資料

備註/標準

應用時對人體影響不影響 Complied BS6920 pt1 clause 8 粉劑密度 1.3 - 未凝漿體狀態奶白色趨流性 - 顏色白色 - 施工温度 5℃ to 40℃ - 混合比例粉劑 : 水 25kg 公斤(W888): 6.5 公升(水) HKHA/MTS (2002/2004 Spec Part

D) 混合後施工時效 30 – 45 分鐘(常規系統)

15 分鐘(緊急系統) -

初段凝固速度@ 23℃ 60% RH

60 分鐘(常規系統) 20 分鐘(緊急系統)

-

可放人行@ 23℃ 60% RH

120 分鐘(常規系統) 40 分鐘(緊急系統)

放行時間視乎加强劑用量 C118 及現場環境

承接面層施工時間@ 23℃ 60% RH

120 分鐘(常規系統) 40 分鐘(緊急維修系統)

同上

抗壓強度 - 7 日 - 28 日

25 Mpa 35 Mpa

HKHA/MTS 02/04 Specification Part D clause 2.1.1

黏結強度@ 28 日 >2 Mpa HKHA/MTS(2002/2004) Specification Part D clause 2.1.15 Method 1

抗收缩拉裂無裂痕 Coutiho Ring Test HKHA/MTS (2006/2008) Specification Part D clause 2.1.6

平均吸水量 3.5% ASTM D570-81 (By 24 HRS immersion)

抗水壓度 - 正水壓 - 背水壓

>8 巴 (水深 80 米) >1 巴 (水深 10 米)

Hong Kong MateriaLab Accredited by Hoklas Laborartory

3.0 產品優點

Coral W888 是水泥性物質，它不但與石屎、磚、石材、雲石和瓦磚面有良好黏合力，亦能承接新水

泥沙批盪、油漆和瓦磚等物料。

CORAL W888



4.0 Coral W888 微晶化過程

Coral W888 內的化學成份會結合水份及石屎內的‘活躍石灰質’產生化學作用並在石屎毛狀體內形

成一連扣式結晶層。這結晶化作用會深入石屎體內及消耗大量水份，結晶層擴展並牢牢扣上石屎

層，當所有水份被吸收成結晶體，整個作用便會停止。但當出現新水源入侵，結晶層會重新活躍起

來並封閉滲水源頭。

5.0 一般應用範圍

地下室內牆，地基圍牆，地台，停車場，水缸，水塘等。

6.0 應用

以油卷,掃或鏝刀施工。施工後需待 8 至 24 小時(視乎天氣環境而定)然後再加塗第二層。正常情況

下，兩層 W888 已能超過其最低厚度 2.5mm 標準。施工時溫度必須在 5℃至 30℃之間。切勿將物料暴

露於烈日下。

7.0 施工指引

準備工作

先清除施工面上塵埃，油脂物。疏鬆面層須刮去及用高壓水清洗，石屎裂縫,‘黃蜂竇’,空隙及流

動水源須先行有效地處理後才可施工。(如有需要, 可向萬寶化工技術部查詢有關處理裂縫方法).

Coral W888 是粉狀單組桶包裝，可依照施工方法(I)進行。Coral W888 緊急維修套裝,是 3組份包

裝, 包括一桶粉劑, MP A907 纖維網及加强劑 C118 (如客戶要求, 可提供紙包裝粉劑)。

方法 I – 常規系统

方法 I, 在完成防水工程後, 需讓防水物料凝固 24 小時, 才可進行面層批盪或油漆工程。將 6.5公

升水混合 25 公斤 Coral W888 粉劑，用慢速攪伴器混和成漿體。完成後, 不可再加入新水份。如以

人手攪伴, 需熟練技工負責。先塗上第一層 W888於基面上，约 1.5 毫米厚。3 小時後, 塗上第二層

W888, 總厚度不少於 2.5毫米。待 24 小時凝固,才可進行面層工程。

方法 II – 緊急系统

施工方案是針對緊急維修工程, 面層工程可在 W888 防水物料凝固 45 分鐘後進行。此方法是設

計給在防水面層上造乾濕沙批盪層及結磚工程使用(可參考立康技術指引)。W888 緊急維修套裝,

是 3 組份包裝, 包括一桶粉劑(A 組),加强水劑(B 組)及纖維網。先將粉劑和加强水劑，用慢速攪伴

器(180Rpm)混和成漿體。完成後, 不可再加入新水份。塗上第一層 W888 於基面並壓上纖維網，

再塗上第二層 W888, 總厚度不少於 2.5 毫米。

Coral W888 的防水機制

結晶化後形成的強力結合層將兩面扣緊

CORAL W888



應用圖例

8.0 抗壓強度進展表

以上數據是由立康研究及開發部在空氣流通情況下記錄。如在其它環境下所得的數據結果或會有所偏差。

9.0 纖維網在不平地面控制厚度

立康牌 A907 纖維網在 W888 夾層式系統下，可達至以下 3 項重要品質控制指標

(i) 底層的纖維網厚度控制整體塗層厚度(參考以下圖例)

(ii) 增强 Coral W888 系統拉力强度

(iii) 增强 Coral W888 系統抗裂强度

方法 I

Method I

CORAL W888



10.0 用量

Coral W888(常規系統) 25 公斤/桶, 约 3 公斤/平方米 (2 層)

Coral W888(緊急系統) 10 公斤/桶, 约 4 公斤/平方米 (夾層系統)

*用量亦會因施工面情況變動

中國國家標準 GB/T17219-1998.

無毒測試報告(W312-0166-2003)

結果: 合格,適合人體飲用

檢驗項目單位檢測依據及標準要求檢測結果單項評價

砷 mg/L ≤0.005 <0.005 符合

汞 mg/L ≤0.001 <0.001 符合

鉻 mg/L ≤0.005 <0.005 符合

鎘 mg/L ≤0.001 <0.001 符合

鉛 mg/L ≤0.005 <0.005 符合

銀 mg/L ≤0.005 <0.005 符合

硝酸鹽 mg/L ≤2 <2 符合

氯仿 μg/L ≤6 <6 符合

四氯化碳 μg/L ≤0.3 0.3 符合

苯并[a]芘 μg/L ≤0.001 零符合

氟化物 mg/L ≤0.1 <0.1 符合

鋅 mg/L ≤0.1 <0.1 符合

鐵 mg/L ≤0.02 <0.02 符合

銅 mg/L ≤0.1 <0.1 符合

錳 mg/L ≤0.01 <0.01 符合

11.0 包裝

W888 常規系統 – 25 公斤/桶

W888 緊急維修 - 8 公斤/桶 + 2 公升加强水劑 + 3 平方米纖維網

12.0 健康與安全

CORAL W888 是無毒性物質，適宜應用於水缸。請依照一般英泥物料處理便可。

13.0 技術服務

萬寶建築化工技術部很樂意為客戶提供技術意見。

Documents

CORAL W888 - MASTER PROOFERmphk123.weebly.com/uploads/3/1/3/7/31378773/w888-476.02.pdfApply with a semi-stiff brush, a coconut fiber broom or trowel. Let dry for 8-24 hours, then the